Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
thue gia » phu gia
thuc gia » thuc giai, thuc dia, tuc gia
co sach » bo sach, cuon sach, hoc sach
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
sach ly » sach y, sach lo, sach ty
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang

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

• Performing a fuzzy search may retrieve terms with similar spellings: co sach ly nang xa hoi. hieu ((va cach) or (va cac)) ((thuc gia) OR (thue gia)) thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach ly nang xa hoi. hieu ((va cach) OR (va cac)) ((thuc gia) OR (thue gia)) thanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "co sach ly nang xa hoi. hieu ((va cach) or (va cac)) ((thuc gia) OR (thue gia)) thanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: co sach ly nang xa hoi. hieu ((va cach) or (va cac)) ((thuc gia) OR (thue gia)) thanh vai cua tre*.