Perhaps you should try some spelling variations:
phap thuc » phap thu, phap hoc, phap tu
cham tuc » nham thuc, pham thuc, tham thuc
va thanh » gia thanh, ban thanh, va tinh
thanh ve » hanh ve, thanh va, thanh vien
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, co hoi, cao hoc
cua tre » cua te, cuu tre, cua triet
ve cua » le cua, de cua, te cua

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 cao hoi. lieu va ((cham tuc) or (phap thuc)) va thanh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang cao hoi. lieu va ((cham tuc) OR (phap thuc)) va thanh ve cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang cao hoi. lieu va ((cham tuc) or (phap thuc)) va thanh ve cua tre*.