Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
dang cong » dung cong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - hanh tranh cua ((nhung cong) or (dang cong)) dan ((van ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh tranh cua ((nhung cong) OR (dang cong)) dan ((van ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh tranh cua ((nhung cong) or (dang cong)) dan ((van ban) or (toan cao))*.