Perhaps you should try some spelling variations:
"nhung thoi quan ha. tac dung uoc mo" » "phung thi quan ha. tac dung uoc mo", "nhung loi quan ha. tac dung uoc mo", "nhung tri quan ha. tac dung uoc mo", "nhung thoi quen ha. tac dung uoc mo", "nhung thong quan ha. tac dung uoc mo", "nhung thai quang ha. tac dung uoc mo", "nhung thoi quan ha. sach dung uoc mo", "nhung thoi quan ha. xay dung uoc mo", "nhung thoi quan ha. tin dung uoc mo", "nhung thoi quan ha. tac dung quoc mo", "nhung thoi quan ha. tac dung hoc mo", "nhung thoi quan ha. tac dung coc mo", "nhung thoi quan he. tac dung uoc mo"
"nhung thi quan han. hoc trung hoc mo" » "phung thi quan han. hoc trung hoc mo", "nhung tri quan han. hoc trung hoc mo", "nhung chi quan han. hoc trung hoc mo", "nhung thi quan han. hoc truong hoc mo", "nhung thi quan han. hoc trong hoc mo", "nhung thi quan han. hoc thuong hoc mo", "nhung thi quan han. hoc trung quoc mo", "nhung thi xuan han. hoc trung hoc mo", "nhung thi luan han. hoc trung hoc mo", "nhung thi quan hanh. hoc trung hoc mo", "nhung thi quanh han. hoc trung hoc mo", "nhung thi quan hai. hoc trung hoc mo", "nhung thi quan hen. hoc trung hoc mo", "nhung thi quan han. hoc trung hoc moi", "nhung thi quan han. hoc trung hoc mot", "nhung thi quan han. hoc trung hoc mon"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("nhung thoi quan ha. tac dung uoc mo") or ("nhung thi quan han. hoc trung hoc mo"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung thoi quan ha. tac dung uoc mo") OR ("nhung thi quan han. hoc trung hoc mo")).
• Removing quotes may allow a broader search: (( nhung thoi quan ha. tac dung uoc mo ) or ( nhung thi quan han. hoc trung hoc mo )).
• Adding a wildcard symbol may retrieve word variants: (("nhung thoi quan ha. tac dung uoc mo") or ("nhung thi quan han. hoc trung hoc mo"))*.