Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, 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 manh » cong danh, duong manh, hoang manh
toan cao » toan ban, toan tap

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