Perhaps you should try some spelling variations:
van anh » van thanh, tuan anh, van minh
duc van » duc va, duc tan, duc manh
hieu ve » hieu va, hieu van
tu sach » thu sach, su sach, te sach
ve pham » vi pham, v pham, ve phan
v nang » va nang, vu nang, van nang
x hoi » xa hoi, o hoi, x ho
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.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((v nang) or (cam nang)) x hoi. hieu ve pham duc van anh ((vi su) OR (ki su)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((v nang) OR (cam nang)) x hoi. hieu ve pham duc van anh ((vi su) OR (ki su)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((v nang) or (cam nang)) x hoi. hieu ve pham duc van anh ((vi su) OR (ki su)) triet*".