Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
toc sach » hoc sach, doc sach, nuoc sach
cao duoc » tao duoc, co duoc, cao duc
hanh vai » hanh vi, hanh va, hanh tai
tu nong » tu dong, tu cong, tu tong
nong xa » song xa, dong xa, nong va
cua tre » cuu tre, cua triet, dua tren
duoc xa » duoc ma, duoc va, duoc ha
xa hanh » xa thanh, xa khanh, va hanh
va cao » va cac, va co, va dao
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) or (thuoc sach)) tu nong xa hoi. lieu va cao duoc xa hanh vai ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (thuoc sach)) tu nong xa hoi. lieu va cao duoc xa hanh vai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) or (thuoc sach)) tu nong xa hoi. lieu va cao duoc xa hanh vai ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (thuoc sach)) tu nong xa hoi. lieu va cao duoc xa hanh vai ((cua tre) OR (cua te))*.