Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien cau » khien cau, thien cau, hien cac
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
via cua » gia cua, gian cua, giau cua
cau ly » cam ly, cap ly
ca cua » co cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang xa hoi. hieu hien cau ly va hanh ((via cua) or (ca cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu hien cau ly va hanh ((via cua) OR (ca cua)) tu.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu hien cau ly va hanh ((via cua) or (ca cua)) tu*.