Perhaps you should try some spelling variations:
cham duc » pham duc, cham soc, pham duy
van hanh » van thanh, ban hanh, van anh
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va danh » va dinh, va hanh, dia danh
cuc tre » duc tre, cua tre, cuu tre
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
va dan » ca dan, va dao, va dau
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 sai ky nang x hoi. hieu va cham duc ((van hanh) or (((va danh) or (va dan)))) tai cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang x hoi. hieu va cham duc ((van hanh) OR (((va danh) OR (va dan)))) tai cuc tre.
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang x hoi. hieu va cham duc ((van hanh) or (((va danh) or (va dan)))) tai cuc tre*.