Perhaps you should try some spelling variations:
thien van » thi van
hieu van » hieu va, lieu va, hieu ve
xay hanh » day nhanh, day thanh, xanh hanh
te sach » toc sach
chat tu » nhat tu, chai tu, chay tu
hanh va » hang va, hanh vi
dao tre » dao tru, dao tien
y nang » ky nang, ly nang, v nang
va dao » ca dao

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 x ho. ((hieu van) or (thien van)) chat tu xay hanh va dao tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang x ho. ((hieu van) OR (thien van)) chat tu xay hanh va dao tre.
• Adding a wildcard symbol may retrieve word variants: te sach y nang x ho. ((hieu van) or (thien van)) chat tu xay hanh va dao tre*.