Perhaps you should try some spelling variations:
tthanh cong » thanh long, hanh cong, thanh hong
phap thong » phap phong, phap chong, pho thong
thong cong » trong cong, tong cong, thong thong
tieu tinh » trieu tinh, tieu trinh, lieu tinh
cong san » cong tac
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu tinh - ((thanh cong) or (tthanh cong)) phap thong cong san ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - ((thanh cong) OR (tthanh cong)) phap thong cong san ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - ((thanh cong) or (tthanh cong)) phap thong cong san ((toan cao) or (toan ban))*.