Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
thanh ve » hanh ve, thanh va, thanh vien
cua tre » cua te, cua triet, dua tren
hanh va » hang va, hanh vi
sach ky » sac ky, sach y, sach ty
su sach » so sach, vu sach
thuc va » thuc vat, thuc dan, thuc day
va pham » van pham, va phat, va phap
cuu tre » cau tren, cau treo
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: su sach ky nang x hoi. lieu va pham thuc va ((thanh ve) or (hanh va)) ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. lieu va pham thuc va ((thanh ve) OR (hanh va)) ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. lieu va pham thuc va ((thanh ve) or (hanh va)) ((cua tre) or (cuu tre))*.