Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
trung tran » trung tuan, trung thanh, trung tam
theo lieu » theo tieu, theo chieu, theo yeu
lieu tinh » trieu tinh, diep tinh, bien tinh
cong tan » cong tac, cong san, cong thanh
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 lieu tinh - hanh trung tran quang ((cong tan) or (cong trinh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo lieu tinh - hanh trung tran quang ((cong tan) OR (cong trinh)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo lieu tinh - hanh trung tran quang ((cong tan) or (cong trinh)) toan cau*.