Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
thu nang » thi nang, thu hang, thu bang
vu sach » vu bach, vu khach
hanh li » nhanh li, hanh vi, han li
xuc van » duc van, luc van, vuc van
ca viet » va viet, co viet, hoa viet
su sach » so sach
va cam » va cham, va cac, va cao
ve cam » ve cham, ve cac, ve cai
x hoi » xa hoi, o hoi, x ho
li ca » ly ca

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) OR (su sach)) thu nang x hoi. hieu ((ve cam) or (va cam)) xuc van hanh li ca viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (su sach)) thu nang x hoi. hieu ((ve cam) OR (va cam)) xuc van hanh li ca viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (su sach)) thu nang x hoi. hieu ((ve cam) or (va cam)) xuc van hanh li ca viet".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (su sach)) thu nang x hoi. hieu ((ve cam) or (va cam)) xuc van hanh li ca viet*.