Perhaps you should try some spelling variations:
trong chung » truong chung, trong chuong, trong hung
hanh trang » thanh trung, canh tranh, hanh trinh
hieu lang » chieu sang, hieu quang, nhieu tang
trang van » tran van, trang va, trong van
chung han » chung nhan, chung than, chuong han
hieu van » hieu va, thien van, lieu va
van dung » van dong, xay dung, tin dung
han tai » hang tai, nhan tai, van tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu lang) or (hieu van)) - hanh trang van dung trong chung han tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu lang) OR (hieu van)) - hanh trang van dung trong chung han tai*.