Perhaps you should try some spelling variations:
nhieu tang » chieu sang, hieu lang, nhiet nang
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
thanh toan » thanh hoa, thanh san, tinh toan
hanh nhan » thanh nhan, danh nhan, anh nhan
manh toan » anh tuan, tinh toan
nhan va » nhan tai, nhan dan, nhan tao

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((nhieu tang) or (chieu xanh)) - hanh nhan va nhung cong ((manh toan) OR (thanh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((nhieu tang) OR (chieu xanh)) - hanh nhan va nhung cong ((manh toan) OR (thanh toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((nhieu tang) or (chieu xanh)) - hanh nhan va nhung cong ((manh toan) OR (thanh toan)) cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((nhieu tang) or (chieu xanh)) - hanh nhan va nhung cong ((manh toan) OR (thanh toan)) cao*.