Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
luc van » luoc van, luu van, duc van
xuc ban » duc ban, cuc ban, quoc ban
ve cham » va cham, ve chat, vu cham
tang ma » mang may, tang van
ty tang » tay tang, ty xang, ty hang
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 ty tang 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 ty tang 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 ty tang ma hoa. hieu ((ve cac) or (ve cham)) ((xuc ban) or (luc van)) anh vi cua te*.