Perhaps you should try some spelling variations:
luan thong » luan phong, luan tuong, luat thong
cong thanh » dong thanh, cong trinh, truong thanh
tang luan » dung luan
theo hop » theo phap, thao hoc, theo ucp
anh tang » anh bang, anh dang, anh nang
cong tan » cong tac, cong san, cong ty
toan ban » van ban
thao bo » tao bo, theo bo, thac bao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo hop) or (thao bo)) manh - anh tang luan thong ((cong tan) OR (cong thanh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo hop) OR (thao bo)) manh - anh tang luan thong ((cong tan) OR (cong thanh)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo hop) or (thao bo)) manh - anh tang luan thong ((cong tan) OR (cong thanh)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ((theo hop) or (thao bo)) manh - anh tang luan thong ((cong tan) OR (cong thanh)) toan ban*.