Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
cau tren » cu tren, dau tren, ca tren
sach phu » sach thu, sach phat, sach thue
thuc day » thuc dan, thuc vat
day hanh » day nhanh, day thanh, dao hanh
phu lang » phap lang, phu khang, phu luong
hieu va » lieu va, hieu qua
va cach » va cac
lang xa » lang ha, dang xay, lang van
hanh va » hang va, hanh vi
cua tre » cua te, cua triet, dua tren
cuu tre » cau treo
te sach » toc sach

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 phu lang xa hoi. hieu va cach thuc day hanh va ((cua tre) or (((cuu tre) or (cau tren))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach phu lang xa hoi. hieu va cach thuc day hanh va ((cua tre) OR (((cuu tre) OR (cau tren)))).
• Adding a wildcard symbol may retrieve word variants: te sach phu lang xa hoi. hieu va cach thuc day hanh va ((cua tre) or (((cuu tre) or (cau tren))))*.