Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
ty nang » ky nang, ty xang, ly nang
ty hang » ly hang, ty xang, thi hang
hieu ve » hieu va, hieu van
dinh ve » dinh ket, dinh van
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va

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) OR (ty hang)) ma hoa. hieu ve cam xuc va ((hanh vi) or (dinh ve)) su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty nang) OR (ty hang)) ma hoa. hieu ve cam xuc va ((hanh vi) OR (dinh ve)) su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ty nang) OR (ty hang)) ma hoa. hieu ve cam xuc va ((hanh vi) or (dinh ve)) su triet".
• Adding a wildcard symbol may retrieve word variants: su sach ((ty nang) OR (ty hang)) ma hoa. hieu ve cam xuc va ((hanh vi) or (dinh ve)) su triet*.