Perhaps you should try some spelling variations:
cham tuc » nham thuc, pham thuc, tham thuc
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
xa hanh » xa thanh, xa khanh, va hanh
tai cua » thai cua, tai cuc, tri cua
cua te » cua tu
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: ((tu sach) or (su sach)) ky nang x hoi. hieu vu cham tuc xa hanh tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang x hoi. hieu vu cham tuc xa hanh tai cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang x hoi. hieu vu cham tuc xa hanh tai cua te*.