Perhaps you should try some spelling variations:
thanh tung » thanh cong
tuan nhung » quan nhung, tuan hung, thuat nhung
hoc chinh » hoan chinh, hoc sinh, hoc kinh
tung tuan » trung tuan, hung tuan, quang tuan
do chinh » mo hinh, do dinh, te chinh
cong tac » cong ty
toan cau » 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: ((do chinh) or (hoc chinh)) sach - thanh tung tuan nhung ((cong san) or (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((do chinh) OR (hoc chinh)) sach - thanh tung tuan nhung ((cong san) OR (cong tac)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ((do chinh) or (hoc chinh)) sach - thanh tung tuan nhung ((cong san) or (cong tac)) toan cau*.