Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
qua cam » qua cham, qua cac, qua ca
va danh » va dinh, va hanh, dia danh
va dan » ca dan, va dao, va dau
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 ty nang xa hoi. hieu ((qua cam) or (cua cac)) xuc ((va danh) OR (va dan)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. hieu ((qua cam) OR (cua cac)) xuc ((va danh) OR (va dan)) vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang xa hoi. hieu ((qua cam) or (cua cac)) xuc ((va danh) OR (va dan)) vi cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. hieu ((qua cam) or (cua cac)) xuc ((va danh) OR (va dan)) vi cua triet*.