Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sach » chieu sach, thien hach, hieu cach
trung tuan » trung thanh, trung tam, tran tuan
tuan nhung » quan nhung, tuan hung, thuat nhung
hoc thieu » toc thieu, hoc hien
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - thanh trung tuan nhung ((cong ban) or (cong san)) ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh trung tuan nhung ((cong ban) OR (cong san)) ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - thanh trung tuan nhung ((cong ban) or (cong san)) ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh trung tuan nhung ((cong ban) or (cong san)) ((toan cau) OR (toan tap))*.