Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
hieu lang » chieu sang, hieu quang, nhieu tang
lang cong » dang cong, bang cong, hang cong
nho hieu » nha hieu, nho sieu, nhu hieu
cong dan » cong san, cong tan, huong dan
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap
va lang » va nang, hoa lang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: nho hieu lang - ((hanh trang) or (hanh trinh)) va lang cong dan ((than cau) OR (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho hieu lang - ((hanh trang) OR (hanh trinh)) va lang cong dan ((than cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "nho hieu lang - ((hanh trang) or (hanh trinh)) va lang cong dan ((than cau) OR (toan cau))".
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - ((hanh trang) or (hanh trinh)) va lang cong dan ((than cau) OR (toan cau))*.