Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh tranh » canh tranh, hanh trinh, lanh tranh
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
cong dan » cong san, cong tan, huong dan
than cau » phan cau, than cap, thanh chau
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 chieu tinh - ((hanh tranh) or (hanh trang)) va nhung cong dan ((than cau) OR (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu tinh - ((hanh tranh) OR (hanh trang)) va nhung cong dan ((than cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu tinh - ((hanh tranh) or (hanh trang)) va nhung cong dan ((than cau) OR (toan cau))".
• Adding a wildcard symbol may retrieve word variants: theo chieu tinh - ((hanh tranh) or (hanh trang)) va nhung cong dan ((than cau) OR (toan cau))*.