Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
ky sang » ky nang, ky dang, duy sang
ky tang » ky nang, ky dang, kho tang
lap hai » lap tai, lap lai, lap hoat
hieu ve » hieu va, hieu van
cam luc » cam xuc, cau luc
ca danh » cao danh, cau danh, va danh
ca dan » cac dan, ca dao
vi cua » vai cua, di cua
ve cam » ve cham, ve cac, va cam
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: vu sach ((ky sang) or (ky tang)) lap hai. hieu ve cam luc ((ca danh) or (ca dan)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((ky sang) OR (ky tang)) lap hai. hieu ve cam luc ((ca danh) OR (ca dan)) vi cua te.
• Adding a wildcard symbol may retrieve word variants: vu sach ((ky sang) or (ky tang)) lap hai. hieu ve cam luc ((ca danh) or (ca dan)) vi cua te*.