Perhaps you should try some spelling variations:
kham chua » kham pha
tu cach » tu cac
va hanh » van hanh, va thanh, va danh
xa hanh » xa thanh, xa khanh, da hanh
ve kham » vu kham, va kham, ve cham
hieu ve » hieu va, hieu van
so sach » so sanh, bo sach, co sach
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 cach) or (so sach)) ky nang x hoi. hieu ve kham chua ((xa hanh) or (va hanh)) dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (so sach)) ky nang x hoi. hieu ve kham chua ((xa hanh) OR (va hanh)) dai cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (so sach)) ky nang x hoi. hieu ve kham chua ((xa hanh) or (va hanh)) dai cua te*.