Perhaps you should try some spelling variations:
tieu tinh » trieu tinh, tieu trinh, lieu tinh
hanh dang » hanh dong, hanh dung, hanh mang
luan dong » luan cong, quan dong, luan nong
dong cong » duong cong, dung cong, dang cong
anh dang » anh dong, anh dung, anh bang
cong dan » cong san, cong tan, huong dan
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - ((hanh dang) OR (anh dang)) luan dong cong dan ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu tinh - ((hanh dang) or (anh dang)) luan dong cong dan ((toan cau) OR (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - ((hanh dang) or (anh dang)) luan dong cong dan ((toan cau) OR (toan cao))*.