Perhaps you should try some spelling variations:
dieu hien » dieu khien, dieu kien, bieu hien
hanh nuoc » hanh duoc, hanh thuoc, khanh quoc
hien hanh » dieu hanh
lang van » dang van, tang van, hoang van
danh vi » dinh vi, danh di, danh va
so sach » bo sach, co sach, hoc sach
van hoi » van hoa, van hoc, van hoe
ky lang » ky nang, ky dang, ky tang
so sanh » do sanh
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) or (so sanh)) ky lang van hoi. dieu hien hanh nuoc va ((danh vi) OR (hanh vi)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) ky lang van hoi. dieu hien hanh nuoc va ((danh vi) OR (hanh vi)) cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) or (so sanh)) ky lang van hoi. dieu hien hanh nuoc va ((danh vi) OR (hanh vi)) cua tu*".