Perhaps you should try some spelling variations:
xa thanh » va thanh, ha thanh, ta thanh
thanh di » thanh doi, thanh de, thanh do
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
qua cam » qua cham, qua ca, qua cai
qua cac » cua cac
cua tre » cuu tre, cua triet, dua tren
y nang » ky nang, ly nang, v nang
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. hieu ((qua cam) or (qua cac)) tuc xa thanh di ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ((qua cam) OR (qua cac)) tuc xa thanh di ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ((qua cam) or (qua cac)) tuc xa thanh di ((cua tre) or (cua te))*.