Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
thu tai » tu tai, tru tai, thu hai
dua ban » dia ban, cua ban, qua ban
xuc ban » duc ban, cuc ban, quoc ban
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
tang ma » mang may, tang van
lang ha » long ha
cua tre » cua te, cuu tre, cua triet
tai ky » thai ky, trai ky, sai ky
ve cua » le cua, de cua, te cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu tai ky ((lang ha) or (tang ma)) noi. hieu vu cham ((xuc ban) or (dua ban)) thanh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu tai ky ((lang ha) OR (tang ma)) noi. hieu vu cham ((xuc ban) OR (dua ban)) thanh ve cua tre.
• Adding a wildcard symbol may retrieve word variants: thu tai ky ((lang ha) or (tang ma)) noi. hieu vu cham ((xuc ban) or (dua ban)) thanh ve cua tre*.