Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
toan cau » toan cao, toan ban, toan tap
van chat » cao chat
hanh vai » hanh vi, hanh va, hanh tai
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
van ha » van hoa, van hanh, van phan

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 ty nang xa hoi. hieu ((toan cau) or (((van chat) or (van ha)))) dat va hanh vai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang xa hoi. hieu ((toan cau) OR (((van chat) OR (van ha)))) dat va hanh vai cua vat.
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang xa hoi. hieu ((toan cau) or (((van chat) or (van ha)))) dat va hanh vai cua vat*.