Perhaps you should try some spelling variations:
thieu lang » hieu lang, thieu khang, thieu quang
hanh trinh » canh tranh, hanh chinh
trinh tran » trinh trang, trinh toan, trinh tren
hoc thieu » toc thieu, hoc hien
tran hung » tran hong, tran quang, tran hoang
cong san » cong tac
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: hoc thieu lang - hanh trinh tran hung ((cong san) or (cong trinh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu lang - hanh trinh tran hung ((cong san) OR (cong trinh)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu lang - hanh trinh tran hung ((cong san) or (cong trinh)) toan cau*.