Perhaps you should try some spelling variations:
thien chanh » thien thanh, thien chinh, hien hanh
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
cong vang » cong lang, cong quang, cong ngang
dien anh » tieng anh, dien dan
manh cua » doanh cua, ban cua
cong van » cong san, song van, cong tan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((dien anh) or (thien chanh)) - canh manh cua nhung ((cong van) or (cong vang)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dien anh) OR (thien chanh)) - canh manh cua nhung ((cong van) OR (cong vang)) toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((dien anh) or (thien chanh)) - canh manh cua nhung ((cong van) or (cong vang)) toan ban*.