Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
danh dai » danh dau, danh di, danh sai
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va chat » van chat, cao chat, hoa chat
truc va » thuc va, trung va
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: thuat sach ky nang xa hoi. lieu ((va chat) OR (va phat)) ((truc va) or (thuc vat)) danh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky nang xa hoi. lieu ((va chat) OR (va phat)) ((truc va) OR (thuc vat)) danh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky nang xa hoi. lieu ((va chat) OR (va phat)) ((truc va) or (thuc vat)) danh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: thuat sach ky nang xa hoi. lieu ((va chat) OR (va phat)) ((truc va) or (thuc vat)) danh dai cua tre*.