Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
luc van » luoc van, luu van, duc van
xuc ban » duc ban, cuc ban, quoc ban
ve cham » va cham, ve chat, vu cham
dang ma » dang mau, dang mam, dang mat
ky dang » ky nang, ky danh
ve cac » va cac, vien cac
anh vi » hanh vi, anh va, anh ve
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: tu sach ky dang ma hoa. hieu ((ve cac) or (ve cham)) ((xuc ban) or (luc van)) anh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky dang ma hoa. hieu ((ve cac) OR (ve cham)) ((xuc ban) OR (luc van)) anh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach ky dang ma hoa. hieu ((ve cac) or (ve cham)) ((xuc ban) or (luc van)) anh vi cua te*.