Perhaps you should try some spelling variations:
thanh trong » thanh trung, tranh trong, hanh trong
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
trong tuan » trong quan, trung tuan, trong tan
tuan nhung » quan nhung, tuan hung, thuat nhung
nhung cong » dung cong, thong cong, hang cong
phuong cau » phuong cham, phuong cach, thuong chau
huong cau » thuong chau, huong dan, huong cua
cong ban » cong bang, cong san, cong tan

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) OR (chieu sach)) - thanh trong tuan nhung cong ban ((phuong cau) or (huong cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (chieu sach)) - thanh trong tuan nhung cong ban ((phuong cau) OR (huong cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sang) OR (chieu sach)) - thanh trong tuan nhung cong ban ((phuong cau) or (huong cau))".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) OR (chieu sach)) - thanh trong tuan nhung cong ban ((phuong cau) or (huong cau))*.