Perhaps you should try some spelling variations:
xa khanh » xa thanh, van khanh, dat khanh
khanh ve » hanh ve, thanh ve, khanh v
cau theo » cau thi, cau tao
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
va cam » va cham, va cao, va cai
ve cau » ke cau, va cau, ve cac

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 ho. hieu ((va cam) or (va cac)) tuc xa khanh ve cau theo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x ho. hieu ((va cam) OR (va cac)) tuc xa khanh ve cau theo.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x ho. hieu ((va cam) or (va cac)) tuc xa khanh ve cau theo*.