Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
cham tuc » nham thuc, tham thuc, cham soc
hang di » hang doi, hang dien, hang dich
hang vi » hang va, hanh vi, khang voi
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
lang xa » lang ha, dang xay, lang van
tu lang » cu lang, tu lanh, xu lang
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: te sach tu lang xa hoi. hieu qua ((cham tuc) OR (pham thuc)) va ((hang vi) or (hang di)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu lang xa hoi. hieu qua ((cham tuc) OR (pham thuc)) va ((hang vi) OR (hang di)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu lang xa hoi. hieu qua ((cham tuc) OR (pham thuc)) va ((hang vi) or (hang di)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach tu lang xa hoi. hieu qua ((cham tuc) OR (pham thuc)) va ((hang vi) or (hang di)) cua tre*.