Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hang hai » hoang hai, hang tai, thanh hai
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu va, hieu van
va hang » van hang, va nang, va lang
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
cua tu » cua tuc, cua su, cua cu

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ((y nang) OR (v nang)) cao hoi. hieu ve cam xuc va hang hai ((cua te) OR (cua tu))~".
• Adding a wildcard symbol may retrieve word variants: toc sach ((y nang) OR (v nang)) cao hoi. hieu ve cam xuc va hang hai ((cua te) OR (cua tu))*.