Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
sach ky » sac ky, sach y, sach kem
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
cam tuc » cam xuc, cam tu, nam thuc
xa hanh » xa thanh, xa khanh, va hanh
va cam » va cham, va cac, va cao
vi cua » vai cua, di 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) OR (sach ty))) or (cac ky)) nang xa hoi. lieu va cam tuc xa hanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((((sach ky) OR (sach ty))) OR (cac ky)) nang xa hoi. lieu va cam tuc xa hanh vi cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((((sach ky) OR (sach ty))) or (cac ky)) nang xa hoi. lieu va cam tuc xa hanh vi cua viet".
• Adding a wildcard symbol may retrieve word variants: su ((((sach ky) OR (sach ty))) or (cac ky)) nang xa hoi. lieu va cam tuc xa hanh vi cua viet*.