Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tang luan » dung luan
cong tinh » cong trinh, cong vinh, long tinh
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
toan ban » van ban
ban cua » ban quan

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 ((tang luan) or (ban cua)) nhung cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh ((tang luan) OR (ban cua)) nhung cong tinh toan ban*.