Perhaps you should try some spelling variations:
hanh dinh » thanh dinh, hinh dinh, hanh tinh
hieu van » hieu va, thien van, lieu va
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
cao hoc » co hoc, cho hoc, chat hoc
vu hanh » vu khanh, vu thanh, du hanh
dinh cu » dinh cuu, dinh chuc, dinh chau
tu ban » thu ban, te ban
ban ky » van ky, dan ky
am hoc » ad hoc
cu tre » cu tren, cua tre, cuu tre

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ban ky dang xa hoi. hieu van ((am hoc) or (cao hoc)) vu hanh dinh cu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ban ky dang xa hoi. hieu van ((am hoc) OR (cao hoc)) vu hanh dinh cu tre.
• Adding a wildcard symbol may retrieve word variants: tu ban ky dang xa hoi. hieu van ((am hoc) or (cao hoc)) vu hanh dinh cu tre*.