Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
thuc day » thuc vat
dang van » hoang van, hang va
thuc dan » thuc hanh, hoc dan, thuc vat
su sach » so sach
tai cuu » tai cuc, tai buu, tai cua
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu va, hieu van
van hoi » van hoa, van hoc, van hoe
ty dang » ty xang, ky dang, ty hang
vu sach » vu bach, vu khach
ve huu » le huu, vu huu, va huu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (vu sach)) ty dang van hoi. hieu ve huu ((thuc dan) or (thuc day)) thanh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ty dang van hoi. hieu ve huu ((thuc dan) OR (thuc day)) thanh tai cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) ty dang van hoi. hieu ve huu ((thuc dan) or (thuc day)) thanh tai cuu tre*.