Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh hang » thanh hang, hanh han, hanh mang
hang hang » nang hang, cang thang, hung thang
cua nhung » va nhung
chi tinh » chai tinh, chi minh, chi binh
cong san » cong tac
san than » sang than, san thanh, ban 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 tinh - ((hanh hang) or (hang hang)) cua nhung cong san than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi tinh - ((hanh hang) OR (hang hang)) cua nhung cong san than cap.
• Adding a wildcard symbol may retrieve word variants: doi chi tinh - ((hanh hang) or (hang hang)) cua nhung cong san than cap*.