Perhaps you should try some spelling variations:
nhanh thi » nhanh thai, nhanh thuc, nhan tai
hieu van » hieu va, thien van, lieu va
va nhanh » va thanh, va hanh, va nhan
thi cua » thai cua, thi cuc, tri cua
bao luc » bao thuc
van bao » van ban, van dao
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
so sanh » do sanh
luc va » duc va, tuc va, loc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu bach) or (so sanh)) ty ((lang xa) or (nang x)) hoi. hieu van bao luc va nhanh thi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu bach) OR (so sanh)) ty ((lang xa) OR (nang x)) hoi. hieu van bao luc va nhanh thi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((vu bach) or (so sanh)) ty ((lang xa) or (nang x)) hoi. hieu van bao luc va nhanh thi cua tre*.