Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien hanh » dieu hanh
hanh nuoc » hanh duoc, hanh thuoc, khanh quoc
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, va hanh
vi cua » vai cua
di cua » doi cua, de cua, do cua

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 ky nang xa hoi. hieu hien hanh nuoc va danh ((vi cua) or (((di cua) OR (dai cua)))) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. hieu hien hanh nuoc va danh ((vi cua) OR (((di cua) OR (dai cua)))) tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang xa hoi. hieu hien hanh nuoc va danh ((vi cua) or (((di cua) OR (dai cua)))) tu*".