Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hien hanh » dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
cua thong » cua thuong, cua khong, cua tong
tang cua » mang cua, hang cua, tang luan
cong dan » cong san, cong tan, huong dan
than tap » toan tap, han tap, thanh lap
than cap » khan cap, thanh lap, thanh cac
phan tap » phan lap, han tap, pha tap

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 hanh - hanh tang cua thong cong dan ((((than tap) or (than cap))) or (phan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - hanh tang cua thong cong dan ((((than tap) OR (than cap))) OR (phan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - hanh tang cua thong cong dan ((((than tap) or (than cap))) or (phan tap))*.