Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhu phuong » thu phuong, nhung phuong, thi phuong
phuong van » phung van, phong van, phuong lan
hoc chieu » hoc thieu, ho chieu, hoc hien
trung vap » trung cap, trung va, trung lap
trung van » truong van, trong van, trung va
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac

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 - hanh ((trung vap) or (trung van)) nhu phuong van ((than cap) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh ((trung vap) OR (trung van)) nhu phuong van ((than cap) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh ((trung vap) or (trung van)) nhu phuong van ((than cap) or (khan cap))*.