Perhaps you should try some spelling variations:
tieu trinh » tien trinh, tien thinh, trieu tinh
chieu sach » chinh sach, chiet tach, chieu sang
trung cap » truong cao, trung tam
dung cong » dung trong
trong ca » trong cac, trong nha
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((tieu trinh) or (chieu sach)) - hanh ((trong ca) or (trung cap)) dung cong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu trinh) OR (chieu sach)) - hanh ((trong ca) OR (trung cap)) dung cong dan phan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((tieu trinh) or (chieu sach)) - hanh ((trong ca) or (trung cap)) dung cong dan phan cau*.