Perhaps you should try some spelling variations:
trung cong » truong cong, trong cong, trung uong
nhanh lang » nhanh quang, nhanh thang, nhan dang
tieu sang » chieu sang, tieu dung, tiem nang
hanh mang » nhanh mang, hanh trang, thanh hang
cua trung » cua truong, xuan trung, cua nhung
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang van, luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sang - ((hanh mang) or (nhanh lang)) cua trung cong tan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - ((hanh mang) OR (nhanh lang)) cua trung cong tan van ban.
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - ((hanh mang) or (nhanh lang)) cua trung cong tan van ban*.