Perhaps you should try some spelling variations:
thai cua » than cua, tai cuc, tri cua
ban hanh » ban hang
van hanh » van thanh, van anh, van ban
cham duc » pham duc, cham soc, pham duy
cua tre » cua te, cuu tre, cua triet
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
dang xa » dang xay, lang xa, dang va
dang ha » dong ha, dung ha, lang ha
sai ky » sac ky
su sai » su tai, su hai, su dai

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sai ky ((dang xa) or (dang ha)) hoi. hieu ve cham duc ((van hanh) or (ban hanh)) thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky ((dang xa) OR (dang ha)) hoi. hieu ve cham duc ((van hanh) OR (ban hanh)) thai cua tre.
• Adding a wildcard symbol may retrieve word variants: su sai ky ((dang xa) or (dang ha)) hoi. hieu ve cham duc ((van hanh) or (ban hanh)) thai cua tre*.