Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
thanh vi » hanh vi, thanh va, nhanh vi
tu sach » thu sach, su sach, te sach
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, mang may
xuc va » duc va, tuc va, luc va
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y ((nang ma) OR (nang cao)) hoi. hieu ve cam xuc va ((thanh vi) or (thanh ve)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((nang ma) OR (nang cao)) hoi. hieu ve cam xuc va ((thanh vi) OR (thanh ve)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((nang ma) OR (nang cao)) hoi. hieu ve cam xuc va ((thanh vi) or (thanh ve)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y ((nang ma) OR (nang cao)) hoi. hieu ve cam xuc va ((thanh vi) or (thanh ve)) cuu tre*.