Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
thanh tung » thanh cong
tuan nhung » quan nhung, tuan hung, thuat nhung
cong thanh » dong thanh, cong trinh, cong tan
tung tuan » trung tuan, hung tuan, quang tuan
cong ban » cong bang, cong san, cong tan
phan dau » phan tu, hang dau

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