Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hanh nuoc » hanh duoc, hanh thuoc, khanh quoc
hien hanh » dieu hanh
dinh vi » dinh ve, dinh viet, dinh tri
danh va » doanh va, hanh va, anh va
so sach » bo sach, co sach, hoc sach
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
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)) ty nang xa hoi. hieu hien hanh nuoc va ((danh va) or (dinh vi)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) ty nang xa hoi. hieu hien hanh nuoc va ((danh va) OR (dinh vi)) cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (so sanh)) ty nang xa hoi. hieu hien hanh nuoc va ((danh va) or (dinh vi)) cua tu*".