Perhaps you should try some spelling variations:
quang nhanh » quang thanh, quang khanh, quang hanh
nhanh thang » nhanh thanh, hanh trang, nhanh chong
hoc thieu » toc thieu, hoc hien
ho chieu » theo chieu, mot chieu, doi chieu
cong tap » cuong tap, cong tan, tong tap
cong tac » cong ty
doan tap » toan tap, doan cap, doanh tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) sach - nhanh quang nhanh thang ((cong tap) OR (cong tac)) doan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sach - nhanh quang nhanh thang ((cong tap) OR (cong tac)) doan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) sach - nhanh quang nhanh thang ((cong tap) OR (cong tac)) doan tap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sach - nhanh quang nhanh thang ((cong tap) OR (cong tac)) doan tap*.