Perhaps you should try some spelling variations:
thanh tung » thanh cong
hien tach » thien hach, chiet tach, vien bach
cac phan » cac nhan, cao phan, cap phan
cao nhan » ca nhan, tao nhan, cam nhan
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu
cap han » cap phan, cap can, cap hay

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien tach - thanh tung ((cap han) or (((cac phan) or (cao nhan)))) cong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien tach - thanh tung ((cap han) OR (((cac phan) OR (cao nhan)))) cong dan phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien tach - thanh tung ((cap han) or (((cac phan) or (cao nhan)))) cong dan phan cau*.