Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cau thuc » cau truc, cuu thuc, can thuc
thanh va » thanh van, hanh va, thanh ha
thanh vi » hanh vi, thanh ve, nhanh vi
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sach 2 » sach y
2 nang » v nang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach 2 nang xa hoi. ((hieu ve) or (hieu qua)) cau thuc vat ((thanh vi) OR (thanh va)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach 2 nang xa hoi. ((hieu ve) OR (hieu qua)) cau thuc vat ((thanh vi) OR (thanh va)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach 2 nang xa hoi. ((hieu ve) or (hieu qua)) cau thuc vat ((thanh vi) OR (thanh va)) cua te".
• Adding a wildcard symbol may retrieve word variants: thuoc sach 2 nang xa hoi. ((hieu ve) or (hieu qua)) cau thuc vat ((thanh vi) OR (thanh va)) cua te*.