Perhaps you should try some spelling variations:
thanh tay » thanh tai, thanh toan, thanh thuy
va thanh » gia thanh, ban thanh, va tinh
bach ty » sach ty, xach tay, bach thu
ty tang » tay tang, ty xang, ty hang
mai hoi » mai khoi, dai hoi, lai hoi
dai moi » doi moi, dai hoi
hieu vu » hieu va, hieu ve, hieu su
vu pham » su pham, vi pham, vu kham
tay cua » day cua, ty cua
cua tre » cua te, cuu tre, cua triet
ma hoi » xa hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach ty tang ((ma hoi) or (((mai hoi) or (dai moi)))). hieu vu pham duc va thanh tay cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach ty tang ((ma hoi) OR (((mai hoi) OR (dai moi)))). hieu vu pham duc va thanh tay cua tre.
• Adding a wildcard symbol may retrieve word variants: vu bach ty tang ((ma hoi) or (((mai hoi) or (dai moi)))). hieu vu pham duc va thanh tay cua tre*.