Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
nhan cua » nhat cua, nhan luc, nhan su
cong dan » cong san, cong tan, huong dan
than tap » toan tap, han tap, phan tap
han cua » hang cua, than cua, hanh cua

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 - hanh ((han cua) or (nhan cua)) nhung cong dan ((than tap) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien thanh - hanh ((han cua) OR (nhan cua)) nhung cong dan ((than tap) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thien thanh - hanh ((han cua) or (nhan cua)) nhung cong dan ((than tap) or (van ban))*.