Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
vat hanh » vat thanh, van hanh, va hanh
tu sach » thu sach, su sach, te sach
cua tre » cuu tre, cua triet, dua tren
hoc vat » hoc va, hoc viet, thuc vat
vu kham » vu khanh
sach ty » sach y, sach tu, sach thu
va cham » va chat, va tham
ang xa » lang xa, mang xa, dang xay
ty ang » ty xang, ty hang, ty anh
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 sach ty ang xa hoi. hieu ((va cham) or (vu kham)) hoc vat hanh vai ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ang xa hoi. hieu ((va cham) OR (vu kham)) hoc vat hanh vai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty ang xa hoi. hieu ((va cham) or (vu kham)) hoc vat hanh vai ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu sach ty ang xa hoi. hieu ((va cham) or (vu kham)) hoc vat hanh vai ((cua tre) OR (cua te))*.