Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet, va triet
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
nam qua » nam quan, nam cua, nam mua
qua van » quan van, qua ban, qua san
hanh di » hanh de, hang di, danh di
cua tre » cua te, cuu tre, dua tren
y nang » ky nang, ly nang, v nang

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: tu sach y nang xa hoi. thien van nam qua van ((hanh di) OR (hanh vi)) ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. thien van nam qua van ((hanh di) OR (hanh vi)) ((cua tre) or (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. thien van nam qua van ((hanh di) OR (hanh vi)) ((cua tre) or (cua triet))*.