Perhaps you should try some spelling variations:
hoang san » hoang van, hoang son, hoang xuan
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
van chat » cao chat
quoc ban » quoc bao, quoc lan, quoc quan
so sanh » do sanh
sanh ty » sach ty, canh tay
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
xuc ban » duc ban, cuc ban, xuat ban
san cua » sang cua, ban cua, dan cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ty nang xa hoi. hieu van chat ((xuc ban) or (quoc ban)) hoang san cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ty nang xa hoi. hieu van chat ((xuc ban) OR (quoc ban)) hoang san cua triet.
• Adding a wildcard symbol may retrieve word variants: so sanh ty nang xa hoi. hieu van chat ((xuc ban) or (quoc ban)) hoang san cua triet*.