Perhaps you should try some spelling variations:
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
xuc gia » luc gia, tuc gia, quoc gia
duc gia » quoc gia
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
doi su » oi su, don su, voi su
di su » ki su, da su, de su

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach v nang xa hoi. hieu va cac ((xuc gia) or (duc gia)) thanh ((di su) OR (doi su)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang xa hoi. hieu va cac ((xuc gia) OR (duc gia)) thanh ((di su) OR (doi su)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang xa hoi. hieu va cac ((xuc gia) or (duc gia)) thanh ((di su) OR (doi su)) triet".
• Adding a wildcard symbol may retrieve word variants: te sach v nang xa hoi. hieu va cac ((xuc gia) or (duc gia)) thanh ((di su) OR (doi su)) triet*.