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
dang cong » dung cong
hoc tieu » hoc thieu, hoc dieu, hoc sieu
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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: hoc tieu tinh - hanh ((tranh cua) or (trung cua)) dang cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tieu tinh - hanh ((tranh cua) OR (trung cua)) dang cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc tieu tinh - hanh ((tranh cua) or (trung cua)) dang cong dan toan cau*.