Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
xuc van » luc van, xuc ban, thuc van
duc van » duc va, duc tan, duc manh
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cham, ve cac, va cam
vi su » va su, ve su, oi su
ki su » ky su

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ma hoi. hieu ve cam ((xuc van) OR (duc van)) thanh ((vi su) OR (ki su)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang ma hoi. hieu ve cam ((xuc van) OR (duc van)) thanh ((vi su) or (ki su)) triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ma hoi. hieu ve cam ((xuc van) OR (duc van)) thanh ((vi su) or (ki su)) triet*.