Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
nhanh lang » nhanh quang, nhanh thang, nhan dang
hieu xanh » chieu xanh, hieu manh, hien hanh
cua trong » cua truong, cua trung, qua trong
lang cua » mang cua, hang cua, long cua
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan ban » can ban, chat ban, chan nan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) or (((hieu nganh) or (dieu hanh)))) - nhanh lang cua trong cong dan chan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (((hieu nganh) OR (dieu hanh)))) - nhanh lang cua trong cong dan chan ban.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (((hieu nganh) or (dieu hanh)))) - nhanh lang cua trong cong dan chan ban*.