Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
tuan nhung » quan nhung, tuan hung, thuat nhung
nhung cong » dung cong, thong cong, hang cong
tung tuan » trung tuan, hung tuan, quang tuan
thanh cac » hanh cac, thanh bac, thanh ca
khoan cam » khoa cam, khoan va, phan cam
cong van » cong vang, cong san, song van
khan cap » khan ap, than cap, phan cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - thanh tung tuan nhung cong van ((thanh cac) or (((khan cap) OR (khoan cam))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh tung tuan nhung cong van ((thanh cac) OR (((khan cap) OR (khoan cam)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - thanh tung tuan nhung cong van ((thanh cac) or (((khan cap) OR (khoan cam))))".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh tung tuan nhung cong van ((thanh cac) or (((khan cap) OR (khoan cam))))*.