Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
lang van » dang van, tang van, hoang van
cua viet » ca viet, hoa viet, cua vat
nang ma » tang ma, sang ma, nang cao
lang xa » lang ha, dang xay
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

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y ((nang ma) or (((lang xa) or (lang van)))) hoi. hieu ve cam xuc va hanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((nang ma) OR (((lang xa) OR (lang van)))) hoi. hieu ve cam xuc va hanh vi cua viet.
• Adding a wildcard symbol may retrieve word variants: thu sach y ((nang ma) or (((lang xa) or (lang van)))) hoi. hieu ve cam xuc va hanh vi cua viet*.