Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
lap cua » lai cua, tap cua, ap cua
lam cua » nam cua, lam chat
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: tu sach ly nang xa hoi. ((lieu va) or (hieu va)) cac xuc va thanh ((lap cua) OR (lam cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang xa hoi. ((lieu va) OR (hieu va)) cac xuc va thanh ((lap cua) OR (lam cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ly nang xa hoi. ((lieu va) or (hieu va)) cac xuc va thanh ((lap cua) OR (lam cua)) triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ly nang xa hoi. ((lieu va) or (hieu va)) cac xuc va thanh ((lap cua) OR (lam cua)) triet*.