Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
vu sach » vu bach, su sach, vu khach
thi van » thi lan, thi hanh, thi nang
tai cuu » tai cuc, tai buu, tai cua
thuc va » thuc vat, thuc dan, thuc day
van cam » van nam, van lam, van cau
hoa hoi » khoa hoi, hoa hoc, hoa doi
cuu tre » cua tre, cau tren, cau treo
y lang » o lang, _ lang, tay lang
xuc va » duc va, tuc va, luc va
ha hoi » ha noi, xa hoi, va 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 sach y lang ((ha hoi) or (hoa hoi)). thi van cam ((xuc va) or (thuc va)) thanh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y lang ((ha hoi) OR (hoa hoi)). thi van cam ((xuc va) OR (thuc va)) thanh tai cuu tre.
• Adding a wildcard symbol may retrieve word variants: vu sach y lang ((ha hoi) or (hoa hoi)). thi van cam ((xuc va) or (thuc va)) thanh tai cuu tre*.