Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
ve cham » va cham, ve chat, vu cham
duc van » duc va, duc tan, duc manh
vai cua » dai cua, hai cua, lai cua
ve cam » ve cac, va cam, ve cai
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: su sach ky nang xa hoi. hieu ((ve cam) or (ve cham)) duc van hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu ((ve cam) OR (ve cham)) duc van hanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu ((ve cam) or (ve cham)) duc van hanh vai cua te*.