Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
chieu sang » chieu sach, chieu xanh, hieu lang
trinh vatn » trinh van, trinh han, trinh san
trinh vat » trinh van, trinh luat, sinh vat
duong van » duong va, luong va, dang van
thanh tap » thanh lap, thanh tay, thanh tam
thanh tai » thanh hai, thanh toan, doanh tai
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 sang - hanh ((trinh vat) or (trinh vatn)) nhung duong van ((thanh tap) or (thanh tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh ((trinh vat) OR (trinh vatn)) nhung duong van ((thanh tap) OR (thanh tai)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh ((trinh vat) or (trinh vatn)) nhung duong van ((thanh tap) or (thanh tai))*.