Perhaps you should try some spelling variations:
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
banh hang » ban hang, banh rang, tranh hang
hang cong » dang cong, hang nong, bang cong
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cac » nhan cach, phan dau, phan lap
va hang » van hang, va nang, va lang

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 xanh) or (hien hanh)) - banh hang va hang cong dan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - banh hang va hang cong dan phan cac.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - banh hang va hang cong dan phan cac*.