Perhaps you should try some spelling variations:
nguong dan » huong dan
manh trung » manh tung, thanh trung, manh hung
hieu lang » chieu sang, hieu quang, nhieu tang
trung can » trung cap, trung van, trong can
nho hieu » nha hieu, nho sieu, nhu hieu
can bang » cao bang, can ban, van ban
nong dan » cong dan, nong san, huong dan
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: nho hieu lang - manh trung can bang ((nong dan) or (nguong dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho hieu lang - manh trung can bang ((nong dan) OR (nguong dan)) toan cau*.