Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
chi sang » chi lang, chieu sang, chi chang
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac
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 sang - hanh trinh cua ((dang cong) or (dung cong)) dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sang - hanh trinh cua ((dang cong) OR (dung cong)) dan than cap.
• Adding a wildcard symbol may retrieve word variants: doi chi sang - hanh trinh cua ((dang cong) or (dung cong)) dan than cap*.