Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
toc sach » hoc sach, doc sach, thuoc sach
ve triet » va trien, su triet
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
sach ty » sach y, sach tu, sach thu
tam xuc » tam thuc
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
va ve » va de, va le, va vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ty nang xa hoi. ((hieu hien) or (tieu bieu)) ((tam xuc) OR (cam xuc)) va hanh va ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty nang xa hoi. ((hieu hien) OR (tieu bieu)) ((tam xuc) OR (cam xuc)) va hanh va ve triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ty nang xa hoi. ((hieu hien) or (tieu bieu)) ((tam xuc) OR (cam xuc)) va hanh va ve triet*".