Perhaps you should try some spelling variations:
theo dieu » theo chieu, thuoc dieu, he dieu
dung cong » dung trong
thang va » hang va, thong va, thanh va
trang va » tran van, hang va
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » 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 dieu) or (theo tieu)) hanh - hanh ((thang va) or (trang va)) dung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo dieu) OR (theo tieu)) hanh - hanh ((thang va) OR (trang va)) dung cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo dieu) or (theo tieu)) hanh - hanh ((thang va) or (trang va)) dung cong tan toan cau*.