Perhaps you should try some spelling variations:
sach thuc » cach thuc, sach thu, sach thue
cham xuc » cam xuc, chat xuc, pham duc
te sach » toc sach
ban dan » ban hang, ban hanh, ban quan
cua tre » cua te, cuu tre, cua triet
hieu vu » hieu va, hieu ve, hieu su
dan de » dan den, dang de, van de
cua tu » cua tuc, cua su, cua cu
hanh x » hanh xu, hanh _, hanh y
x hoi » xa hoi, o hoi, x ho

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 thuc hanh x hoi. hieu vu ((cham xuc) OR (cham soc)) ban dan de ((cua tre) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thuc hanh x hoi. hieu vu ((cham xuc) OR (cham soc)) ban dan de ((cua tre) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thuc hanh x hoi. hieu vu ((cham xuc) OR (cham soc)) ban dan de ((cua tre) or (cua tu))".
• Adding a wildcard symbol may retrieve word variants: te sach thuc hanh x hoi. hieu vu ((cham xuc) OR (cham soc)) ban dan de ((cua tre) or (cua tu))*.