Perhaps you should try some spelling variations:
tieu tinh » trieu tinh, tieu trinh, lieu tinh
tranh cua » doanh cua, manh cua
trung cua » truong cua, trung tuan, trung cap
dung cong » dung trong
hoc tieu » hoc thieu, hoc dieu, hoc sieu
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc tieu tinh - hanh ((tranh cua) or (((trung cua) or (trung tam)))) dung cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tieu tinh - hanh ((tranh cua) OR (((trung cua) OR (trung tam)))) dung cong dan than cau.
• Adding a wildcard symbol may retrieve word variants: hoc tieu tinh - hanh ((tranh cua) or (((trung cua) or (trung tam)))) dung cong dan than cau*.