Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sang » chieu sach, chieu xanh, hieu lang
doanh cua » doanh luan
than phan » thanh phan, toan phan, thanh pham
ho chieu » theo chieu, hoc thieu, doi chieu
manh cua » ban cua
tan phan » toan phan, van phan, tai phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - lanh ((manh cua) or (doanh cua)) nhung cong ((tan phan) or (than phan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - lanh ((manh cua) OR (doanh cua)) nhung cong ((tan phan) OR (than phan)) cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - lanh ((manh cua) or (doanh cua)) nhung cong ((tan phan) or (than phan)) cau*.