Perhaps you should try some spelling variations:
te sach » toc sach
hanh di » hanh vi, hanh de, hang di
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va nang » van nang, da nang, cam nang
luc va » duc va, tuc va
loc va » hoc va
v nang » vu nang, van nang, voi nang
di cua » dai cua, doi cua, de cua
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: te sach ((v nang) or (va nang)) xa hoi. hieu va cham ((luc va) OR (loc va)) hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((v nang) OR (va nang)) xa hoi. hieu va cham ((luc va) OR (loc va)) hanh di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((v nang) or (va nang)) xa hoi. hieu va cham ((luc va) OR (loc va)) hanh di cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ((v nang) or (va nang)) xa hoi. hieu va cham ((luc va) OR (loc va)) hanh di cua te*.