Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
thieu xanh » chieu xanh, hieu manh, thien anh
tranh cac » trinh cac, thanh cac, tranh cai
quang cao » nang cao, quang nam
cong van » cong vang, cong san, song van
quan cau » toan cau, quan ha, quan cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu xanh - canh tranh cac truong cong van ((quan cau) or (quang cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - canh tranh cac truong cong van ((quan cau) OR (quang cao))*.