Perhaps you should try some spelling variations:
thanh trung » thanh tung
manh trung » manh tung, manh hung, sinh trung
danh trung » dang trung, dinh trung, sinh trung
dung cong » dung trong
chi hanh » chi nhanh, chi thanh, thi hanh
qua dung » quang dung, su dung, qua song
cong tan » cong tac, cong san, cong thanh
tan chan » dan chan, ban chan, can chan
chan cao » chan cho, chat cao, chay cao
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi hanh - ((danh trung) or (((manh trung) or (thanh trung)))) qua dung cong tan chan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi hanh - ((danh trung) OR (((manh trung) OR (thanh trung)))) qua dung cong tan chan cao.
• Adding a wildcard symbol may retrieve word variants: doi chi hanh - ((danh trung) or (((manh trung) or (thanh trung)))) qua dung cong tan chan cao*.