Perhaps you should try some spelling variations:
tai hoat » toan hoat, tai khoan, tai khoa
toi hoat » toan hoat, thi hoa, thi hoan
hieu ve » hieu va, hieu van
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cam luc » cam xuc, cau luc
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua
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 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 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 cua te*.