Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dung phong » dung phuong, duong phong, rung phong
thanh chau » thanh cha, thanh cham, thanh chu
hiem ngan » kim ngan, viem gan
hanh nang » anh nang, ganh nang, hanh mang
nang quan » ban quan, nang suat
quan dung » quang dung, quan duong, qua dung
phong van » phung van, thong van, phong va
van thanh » ban thanh, van tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (hiem ngan)) - hanh nang quan dung phong van thanh chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (hiem ngan)) - hanh nang quan dung phong van thanh chau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (hiem ngan)) - hanh nang quan dung phong van thanh chau*.