Perhaps you should try some spelling variations:
thanh vien » nhan vien, thanh van
va thanh » gia thanh, ban thanh, va tinh
bo sach » co sach, hoc sach
thuc va » thuc vat, thuc dan, thuc day
cuu tre » cua tre, cau tren, cau treo
sach lo » sach dao, sach doi, sach hoi
van hac » van hoc, van hai, van chat
lo nang » ho nang, ly nang, loai nang
ca tren » cau tren, cu tren, la tren
van ha » van hoa, van chat, van hanh
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach lo nang x hoi. thien ((van hac) OR (van ha)) thuc va thanh vien ((cuu tre) or (ca tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach lo nang x hoi. thien ((van hac) OR (van ha)) thuc va thanh vien ((cuu tre) OR (ca tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach lo nang x hoi. thien ((van hac) OR (van ha)) thuc va thanh vien ((cuu tre) or (ca tren))*".