Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang ma » tang ma, sang ma, nang cao
van cai » van cau, van ai, van ca
van chi » van chien, luan chi, van chat
van hai » van ha, van chat, van hanh
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty nang ma hoi. hieu ((((van cai) OR (van chi))) or (van hai)) dat va thanh vi cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang ma hoi. hieu ((((van cai) OR (van chi))) OR (van hai)) dat va thanh vi cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang ma hoi. hieu ((((van cai) OR (van chi))) or (van hai)) dat va thanh vi cua vat".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang ma hoi. hieu ((((van cai) OR (van chi))) or (van hai)) dat va thanh vi cua vat*.