Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
dung cong » dung trong
hang cong » dang cong, hang nong, bang cong
chi xanh » chi anh, chi danh, chi hanh
trinh ve » trinh he, trinh va, trinh vi
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap
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 xanh - hanh trinh ve ((dung cong) or (hang cong)) dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - hanh trinh ve ((dung cong) OR (hang cong)) dan than cao.
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - hanh trinh ve ((dung cong) or (hang cong)) dan than cao*.