Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
tang ma » mang may, tang van
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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: thuat sach y ((nang x) OR (tang ma)) hoi. hieu ve cam xuc va hanh ((vi cua) OR (di cua)) te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y ((nang x) or (tang ma)) hoi. hieu ve cam xuc va hanh ((vi cua) OR (di cua)) te~".
• Adding a wildcard symbol may retrieve word variants: thuat sach y ((nang x) or (tang ma)) hoi. hieu ve cam xuc va hanh ((vi cua) OR (di cua)) te*.