Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thanh trung » thanh tung
hoc thien » hoc hien, hoc thieu, hoc thiet
pha nhung » phai nhuong, tham nhung, phan chung
ha nhung » hoa nhung, hay nhung, va nhung
cong dan » cong san, cong tan, huong dan
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien thanh - thanh trung ((ha nhung) or (pha nhung)) cong dan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien thanh - thanh trung ((ha nhung) OR (pha nhung)) cong dan ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thien thanh - thanh trung ((ha nhung) or (pha nhung)) cong dan ((toan cao) or (toan ban))*.