Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
chau tinh » cuu tinh, ha tinh, cua tinh
hanh tran » hanh trang, thanh tran, hanh tram
tran van » luan van
van dung » van dong, xay dung, tin dung
cong dan » cong san, cong tan, cong dong
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: ho ((lieu tinh) or (chau tinh)) - hanh tran van dung ((cong dan) or (huong dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((lieu tinh) OR (chau tinh)) - hanh tran van dung ((cong dan) OR (huong dan)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((lieu tinh) or (chau tinh)) - hanh tran van dung ((cong dan) or (huong dan)) toan cau*.