Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
chieu sach » chinh sach, chiet tach, chieu sang
trung chua » trung cua, trong chuan, trung ha
hieu manh » chieu xanh, hieu nganh, dieu hanh
chua nang » chuc nang, chua xang, kha nang
nang cong » nang song, dang cong, bang cong
than cap » khan cap, thanh lap, thanh cac
cong de » cong da, cong ve, cong dieu
de than » de thanh, he than, te than

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 (hieu manh)) - hanh trung chua nang cong de than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (hieu manh)) - hanh trung chua nang cong de than cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (hieu manh)) - hanh trung chua nang cong de than cap*.