Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
chinh qua » chinh cua, chinh sua, chinh quoc
nhu hieu » nhu hien, nha hieu, nho hieu
qua dung » quang dung, su dung, qua song
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: nhu hieu lang - hanh chinh qua dung ((cong dan) or (cong tan)) ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nhu hieu lang - hanh chinh qua dung ((cong dan) OR (cong tan)) ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: nhu hieu lang - hanh chinh qua dung ((cong dan) or (cong tan)) ((toan cau) or (toan tap))*.