Perhaps you should try some spelling variations:
cong khanh » cong thanh, cong khan, cong nhan
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, ho chieu, mot chieu
tranh cua » doanh cua, manh cua
dung cong » dung trong
thanh tap » thanh tai, thanh tay, thanh tam
thanh lap » thanh san, phan lap, thanh hai
cua dung » cua dang, cua dong, qua dung
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 chieu) or (doi chi)) xanh - hanh tranh cua dung cong khanh ((thanh tap) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doi chi)) xanh - hanh tranh cua dung cong khanh ((thanh tap) OR (thanh lap)).
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doi chi)) xanh - hanh tranh cua dung cong khanh ((thanh tap) or (thanh lap))*.