Perhaps you should try some spelling variations:
thanh thai » thanh hai, thanh tai, nhanh thai
ban thanh » ban hanh, ban hang
thai cua » than cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
vu cham » va cham, vu kham, tu cham
coc ban » co ban, cac ban, hoc ban
ve cham » va cham, ve chat, ve chim
lang xa » lang ha, dang xay, lang van
tang xa » trang xa, tang ma, tang ha
xac ky » cac ky, sac ky, bac ky
su xac » pu xac, su cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su xac ky ((tang xa) OR (lang xa)) hoi. hieu ((ve cham) or (vu cham)) coc ban thanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ky ((tang xa) OR (lang xa)) hoi. hieu ((ve cham) OR (vu cham)) coc ban thanh thai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su xac ky ((tang xa) OR (lang xa)) hoi. hieu ((ve cham) or (vu cham)) coc ban thanh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: su xac ky ((tang xa) OR (lang xa)) hoi. hieu ((ve cham) or (vu cham)) coc ban thanh thai cua tre*.