Perhaps you should try some spelling variations:
thep viet » phap viet, te viet, thai viet
viet tach » viet sach, viet tech, viet thanh
truong va » truong dai, truong cao, truong dao
hang cong » dang cong, hang nong, bang cong
cong dan » cong san, cong tan, huong dan
toan cao » toan tap
toan ban » van ban
tung va » trung va, tuong va, dung va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thep viet tach - thanh ((tung va) or (truong va)) hang cong dan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thep viet tach - thanh ((tung va) OR (truong va)) hang cong dan ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: thep viet tach - thanh ((tung va) or (truong va)) hang cong dan ((toan cao) or (toan ban))*.