Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, mot chieu
xuong dan » huong dan, xuong san, nguong dan
tuong dan » huong dan, tung dan, truong dai
trung va » truong va, trang va, trung ha
va tuong » va thuong, va thong, xa truong
cua tap » cua tam, cua phap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - thanh trung va tuong ((xuong dan) or (tuong dan)) cua tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh trung va tuong ((xuong dan) OR (tuong dan)) cua tap*.