Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
cua tre » cua te, cuu tre, cua triet
vai cua » dai cua, hai cua, lai cua
lang xa » lang ha, dang xay, lang van
ve cham » ve chat, vu cham, ve chim
hoc van » hoc dan, hoc va, hoc vat
va cham » va chat, va tham
sac ky » sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sac ky) or (cac ky)) lang xa hoi. hieu ((ve cham) OR (va cham)) hoc van hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (cac ky)) lang xa hoi. hieu ((ve cham) OR (va cham)) hoc van hanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sac ky) or (cac ky)) lang xa hoi. hieu ((ve cham) OR (va cham)) hoc van hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (cac ky)) lang xa hoi. hieu ((ve cham) OR (va cham)) hoc van hanh vai cua tre*.