Perhaps you should try some spelling variations:
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
thi van » thi lan, thi hanh, thi nang
van cac » van hac, van cau, van bac
cua tre » cuu tre, cua triet, dua tren
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, duc va
cua te » cua tu

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 y nang xa hoi. thi van cac ((tuc va) or (tuc xa)) hanh vi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. thi van cac ((tuc va) OR (tuc xa)) hanh vi ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. thi van cac ((tuc va) or (tuc xa)) hanh vi ((cua tre) or (cua te))*.