Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
tieu tinh » trieu tinh, tieu trinh, lieu tinh
tang van » dang van, hoang van, trong van
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan ban
tang va » trang va, thang va, tang vat

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 - anh ((tang va) or (tang van)) thuong cong tan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - anh ((tang va) OR (tang van)) thuong cong tan toan tap.
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - anh ((tang va) or (tang van)) thuong cong tan toan tap*.