Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
thanh tung » thanh cong
thanh chau » thanh cha, thanh cham, thanh chu
dang cong » dung cong
tung cap » trung cap, cung cap, thong cap
cap dang » cao dang, cac dang, cap bang
cong dan » cong san, cong tan, huong dan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chinh sach) or (hieu quang)) - thanh tung cap dang cong dan ((thanh chau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chinh sach) OR (hieu quang)) - thanh tung cap dang cong dan ((thanh chau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho ((chinh sach) or (hieu quang)) - thanh tung cap dang cong dan ((thanh chau) or (toan tap))*.