Perhaps you should try some spelling variations:
thiet danh » thien danh, thien anh, thien dang
hanh trang » thanh trung, canh tranh, hanh trinh
hoc thiet » hoc thieu, hoc thuyet, hoc hien
trang va » tran van, hang va
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan cau » toan cao, toan ban, toan tap
than cap » khan cap, thanh lap, thanh cac
va bang » va nang, va lang, va ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thiet danh - hanh trang va bang ((cong tan) or (cong san)) ((toan cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet danh - hanh trang va bang ((cong tan) OR (cong san)) ((toan cau) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: hoc thiet danh - hanh trang va bang ((cong tan) or (cong san)) ((toan cau) or (than cap))*.