Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
tu sach » thu sach, su sach, te sach
danh di » danh du, xanh di, danh dien
dinh di » dinh du, dinh vi, dinh da
cua tre » cua te, cuu tre, cua triet
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
xuc va » duc va, tuc va, luc va
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thuat sach)) ky tang xa hoi. lieu va cam xuc va ((dinh di) OR (danh di)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat sach)) ky tang xa hoi. lieu va cam xuc va ((dinh di) OR (danh di)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thuat sach)) ky tang xa hoi. lieu va cam xuc va ((dinh di) OR (danh di)) cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat sach)) ky tang xa hoi. lieu va cam xuc va ((dinh di) OR (danh di)) cua tre*.