Perhaps you should try some spelling variations:
thanh hoi » thanh hoai, thanh hoa, thanh hai
ban thanh » ban hanh, ban hang
vien cac » vien bach, vien dai, vien da
ve cham » va cham, ve chat, vu cham
hoi cua » hoi chuc
duc ban » duc tan, duc van, dua ban
thu sai » thu hai, thu tai, thu san
sai ky » sac ky
ve cac » va cac
nang o » nang co, nang ho, nang ro
cua te » cua tu
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sai ky nang o hoi. hieu ((((ve cac) or (vien cac))) or (ve cham)) duc ban thanh hoi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sai ky nang o hoi. hieu ((((ve cac) OR (vien cac))) OR (ve cham)) duc ban thanh hoi cua te.
• Adding a wildcard symbol may retrieve word variants: thu sai ky nang o hoi. hieu ((((ve cac) or (vien cac))) or (ve cham)) duc ban thanh hoi cua te*.