Perhaps you should try some spelling variations:
tai hoat » toan hoat, tai khoan, tai khoa
toi hoat » toan hoat, thi hoa, thi hoan
so sach » so sanh, bo sach, co sach
danh vi » hanh vi, dinh vi, danh va
ky sang » ky nang, ky dang, ky tang
danh di » danh du, xanh di, danh dien
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
cam luc » cam xuc, cau luc
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va, loc va
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: so sach ky sang ((tai hoat) or (toi hoat)). hieu ve cam luc va ((danh vi) OR (danh di)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky sang ((tai hoat) OR (toi hoat)). hieu ve cam luc va ((danh vi) OR (danh di)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky sang ((tai hoat) or (toi hoat)). hieu ve cam luc va ((danh vi) OR (danh di)) cua te".
• Adding a wildcard symbol may retrieve word variants: so sach ky sang ((tai hoat) or (toi hoat)). hieu ve cam luc va ((danh vi) OR (danh di)) cua te*.