Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
va triet » va thiet, va trien, ve triet
va thanh » gia thanh, ban thanh, va tinh
sach thu » sach thue, sach thieu, sach tham
cam luc » cam xuc, cau luc
sach tu » cach tu, sach ty, sach uu
hieu va » lieu va
nang xa » nang x, lang xa, nang ma
luc va » duc va, tuc va, loc va
dai va » mai va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach tu) OR (sach thu)) nang xa hoi. ((hieu va) OR (hieu qua)) cam luc va thanh dai va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach tu) OR (sach thu)) nang xa hoi. ((hieu va) or (hieu qua)) cam luc va thanh dai va triet~".
• Adding a wildcard symbol may retrieve word variants: su ((sach tu) OR (sach thu)) nang xa hoi. ((hieu va) or (hieu qua)) cam luc va thanh dai va triet*.