Perhaps you should try some spelling variations:
tmanh tung » thanh tung, thanh trung, manh hung
phap thong » phap phong, phap chong, pho thong
thong cong » trong cong, tong cong, thong thong
tieu tinh » trieu tinh, tieu trinh, lieu tinh
manh tung » manh hung, thanh tung
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap

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 - ((manh tung) or (tmanh tung)) phap thong cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - ((manh tung) OR (tmanh tung)) phap thong cong san toan cao.
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - ((manh tung) or (tmanh tung)) phap thong cong san toan cao*.