Perhaps you should try some spelling variations:
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
luan phan » luan van, luan hoan
theo chu » theo chieu, cho chu, chao chu
chu tinh » chau tinh, chua tinh, cuu tinh
cong san » cong tac
cong tan » cong tac, cong thanh, cong ty
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 chu tinh - hanh tang luan phan ((cong san) or (cong tan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu tinh - hanh tang luan phan ((cong san) OR (cong tan)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chu tinh - hanh tang luan phan ((cong san) or (cong tan)) toan cau*.