Perhaps you should try some spelling variations:
trinh thiet » trinh thi
nhung duong » nhung dung, nhung huong, nhung tuong
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh viet » ninh viet, trinh vat
thanh toan » thanh hoa, thanh san, tinh toan
manh toan » anh tuan, tinh toan
ho chieu » theo chieu, hoc thieu, doi chieu

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 xanh - hanh ((trinh thiet) or (trinh viet)) nhung duong ((manh toan) OR (thanh toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh ((trinh thiet) OR (trinh viet)) nhung duong ((manh toan) OR (thanh toan)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - hanh ((trinh thiet) or (trinh viet)) nhung duong ((manh toan) OR (thanh toan)) tap".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh ((trinh thiet) or (trinh viet)) nhung duong ((manh toan) OR (thanh toan)) tap*.