Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hanh trinh » canh tranh, hanh chinh
luat chung » luan chung, luat thuong, cua chung
hoc thieu » toc thieu, hoc hien
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: hoc thieu sang - hanh trinh luat chung ((((cong san) or (cong tan))) or (huong dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh trinh luat chung ((((cong san) OR (cong tan))) OR (huong dan)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - hanh trinh luat chung ((((cong san) or (cong tan))) or (huong dan)) toan cau*.