Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hanh vai » hanh vi, hanh va, hanh tai
ky dang » ky danh
vu cham » vu kham, tu cham, qua cham
va cham » va chat, va tham
soc van » hoc van, oc van, sac van
vai cua » dai cua, hai cua, lai cua
tu sac » tu sach, tu cac, tu san
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ((ky dang) or (ky nang)) dai hoc. hieu ((vu cham) OR (va cham)) soc van hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ((ky dang) OR (ky nang)) dai hoc. hieu ((vu cham) OR (va cham)) soc van hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ((ky dang) or (ky nang)) dai hoc. hieu ((vu cham) OR (va cham)) soc van hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: tu sac ((ky dang) or (ky nang)) dai hoc. hieu ((vu cham) OR (va cham)) soc van hanh vai cua te*.