Perhaps you should try some spelling variations:
tthanh tung » thanh trung, thanh hung, hanh tung
thanh tung » thanh cong
phap chong » phap phong, phap cong, pham hong
chong cong » cong cong, thong cong, cuong cong
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 tung) or (tthanh tung)) phap chong cong san ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - ((thanh tung) OR (tthanh tung)) phap chong cong san ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - ((thanh tung) or (tthanh tung)) phap chong cong san ((toan cao) or (toan ban))*.