Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
chieu sach » chinh sach, chiet tach, chieu sang
chong tham » hong tham, chong phap, cong thai
tham nhung » thi nhung
nhung cong » dung cong, thong cong, hang cong
hieu cac » hieu luc, hieu va, hieu van
cong tac » cong ty
tac hang » tac vang, bac thang, tac chong
hang ca » hang va, nang cao, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu cac) or (chieu sach)) - nhanh chong tham nhung cong tac hang ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu cac) OR (chieu sach)) - nhanh chong tham nhung cong tac hang ca.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu cac) or (chieu sach)) - nhanh chong tham nhung cong tac hang ca*.