Perhaps you should try some spelling variations:
hanh tung » thanh tung, manh tung, hanh dung
hanh mang » nhanh mang, hanh trang, nhanh lang
hang cong » dang cong, hang nong, bang cong
manh toan » thanh toan, anh tuan, tinh toan
theo cuu » theo chu, khao cuu, thao cua
cua hang » cua dang, cua nhung, cua cong
dan than » dan chan, ban than, van than

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo cuu tinh - ((hanh tung) OR (hanh mang)) cua hang cong ((manh toan) OR (dan than)) cao~.
• Adding a wildcard symbol may retrieve word variants: theo cuu tinh - ((hanh tung) or (hanh mang)) cua hang cong ((manh toan) or (dan than)) cao*.