Perhaps you should try some spelling variations:
thanh trung » thanh tung
hien hanh » dieu hanh
tan dung » tran dung, tin dung, van dung
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
am dung » am duong, lam dung, ap dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien hanh - thanh trung ((am dung) or (tan dung)) cong tan ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - thanh trung ((am dung) OR (tan dung)) cong tan ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - thanh trung ((am dung) or (tan dung)) cong tan ((toan cau) or (toan tap))*.