Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hanh hai » thanh hai, nhanh hai, hang hai
te sach » toc sach
sach uu » sach luu, sach tu, sach xu
uu dang » huu dang, su dang, vu dang
dang xa » dang xay, lang xa, dang ha
hieu va » lieu va, hieu qua
cac luc » coc luc, cac nuoc, cac cuoc
cau luc » cau truc, cau phuc
hai cua » thai cua, dai cua, hoi cua
cua su » qua su

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 uu dang xa hoi. hieu va ((cac luc) or (cau luc)) van hanh hai cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach uu dang xa hoi. hieu va ((cac luc) OR (cau luc)) van hanh hai cua su.
• Adding a wildcard symbol may retrieve word variants: te sach uu dang xa hoi. hieu va ((cac luc) or (cau luc)) van hanh hai cua su*.