Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
canh tinh » hanh tinh, manh tinh, canh tranh
cong manh » cong danh, duong manh, cong thanh
cong dan » cong san, cong tan, huong dan
toan ban » van ban
ho hieu » ho chieu, hoi hieu, nho hieu
tinh va » tich va, trinh van, trinh vat
va nang » van nang, da nang, cam nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - canh tinh va nang ((cong manh) or (cong dan)) ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - canh tinh va nang ((cong manh) OR (cong dan)) ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - canh tinh va nang ((cong manh) or (cong dan)) ((toan tap) or (toan ban))*.