Perhaps you should try some spelling variations:
nang dai » nang dau, nang tai, lang dai
te sach » toc sach
vu cham » va cham, vu kham, tu cham
va hanh » van hanh, va thanh, va danh
ve cham » va cham, ve chat, ve chim
dai hoi » dai hoc, dai hai, dai moi
y nang » ky nang, ly nang, v nang
soc va » hoc va, loc va, doc va

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 y nang dai hoi. hieu ((ve cham) or (vu cham)) soc va hanh ((ly cua) or (le cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang dai hoi. hieu ((ve cham) OR (vu cham)) soc va hanh ((ly cua) OR (le cua)) tre.
• Adding a wildcard symbol may retrieve word variants: te sach y nang dai hoi. hieu ((ve cham) or (vu cham)) soc va hanh ((ly cua) or (le cua)) tre*.