Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
chieu sang » chieu sach, chieu xanh, hieu lang
duong sinh » duong minh, duong manh, trong sinh
doc chieu » doc hieu, doi chieu, toc thieu
trinh han » trinh quan
sinh van » sinh vat, dinh van, sinh va

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc chieu sang - canh ((tinh quang) or (trinh han)) nhung duong sinh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chieu sang - canh ((tinh quang) OR (trinh han)) nhung duong sinh van ban.
• Adding a wildcard symbol may retrieve word variants: doc chieu sang - canh ((tinh quang) or (trinh han)) nhung duong sinh van ban*.