Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
chat trung » chat trong, ha trung, cua trung
trung va » truong va, trang va, trung ha
danh dai » danh dau, danh di, danh sai
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ca » hieu cac, hieu cua, hieu va
ca chat » cao chat, cac chat, va chat
xanh di » danh di, vanh dai, xanh tai
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sach) or (tu sach)) ky nang xa hoi. hieu ca chat trung va ((danh dai) or (xanh di)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (tu sach)) ky nang xa hoi. hieu ca chat trung va ((danh dai) OR (xanh di)) cua tre.
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (tu sach)) ky nang xa hoi. hieu ca chat trung va ((danh dai) or (xanh di)) cua tre*.