Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sang » chieu sach, chieu xanh, hieu lang
ho chieu » theo chieu, hoc thieu, doi chieu
than cua » nhan cua, ban cua, gian cua
thai cua » tai cuc, tri cua, dai cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: ho chieu sang - hanh ((than cua) or (thai cua)) nhung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh ((than cua) OR (thai cua)) nhung cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh ((than cua) or (thai cua)) nhung cong tac toan cao*.