Perhaps you should try some spelling variations:
khanh lai » khanh luan, thanh lap, thanh loi
chau tre » chay tren, chau tho, cho tre
toc sach » hoc sach, doc sach, thuoc sach
xa khanh » xa thanh, van khanh, dat khanh
tu tuong » tu dong
gia duc » giao duc, gia muc, gia thuc
hieu va » lieu va, hieu qua
tu tong » tu trong, tu dong, tu cong
va gia » va giai
duc xa » duoc xa, tuc xa, duc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (toc sach)) ((tu tuong) or (tu tong)) xa hoi. hieu va gia duc xa khanh lai chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ((tu tuong) OR (tu tong)) xa hoi. hieu va gia duc xa khanh lai chau tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) ((tu tuong) or (tu tong)) xa hoi. hieu va gia duc xa khanh lai chau tre*.