Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, thien tinh, lieu tinh
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh tung » thanh cong
dang cong » dung cong
tung thi » tang thi, dung thi, tong thi
thi dang » thi nang, thi hang, thi dung
cong ban » cong bang, cong san, cong tan
than cau » toan cau, phan cau, than cap
toan ban » van 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 tinh) or (chieu tinh)) - thanh tung thi dang cong ban ((than cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu tinh) OR (chieu tinh)) - thanh tung thi dang cong ban ((than cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu tinh) or (chieu tinh)) - thanh tung thi dang cong ban ((than cau) or (toan ban))*.