Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
cham tuc » nham thuc, tham thuc, cham soc
te sach » toc sach
hang vi » hanh vi, hang di, khang voi
cuu tre » cua tre, cau tren, cau treo
sach tu » sach thu, cach tu, sach ty
tu nang » tru nang, tu nong, tu nano
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 tu nang x hoi. hieu qua ((cham tuc) or (pham thuc)) va ((hang vi) OR (hang va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu nang x hoi. hieu qua ((cham tuc) OR (pham thuc)) va ((hang vi) OR (hang va)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu nang x hoi. hieu qua ((cham tuc) or (pham thuc)) va ((hang vi) OR (hang va)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach tu nang x hoi. hieu qua ((cham tuc) or (pham thuc)) va ((hang vi) OR (hang va)) cuu tre*.