Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh tai » thanh tai, hang tai, han tai
van hanh » van thanh, ban hanh, van anh
nang xa » nang x, lang xa, nang ma
tai cua » thai cua, tai cuc, tri cua
ve chat » va chat, van chat
sach ky » sac ky, sach y, sach ty
duc van » duc va, duc tan, duc manh
va cham » va chat, va tham
ve cam » ve cham, ve cac, va cam
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: thu sach ky nang xa hoi. hieu ((ve cam) or (((ve chat) or (va cham)))) duc van hanh tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang xa hoi. hieu ((ve cam) OR (((ve chat) OR (va cham)))) duc van hanh tai cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. hieu ((ve cam) or (((ve chat) or (va cham)))) duc van hanh tai cua te*.