Perhaps you should try some spelling variations:
ban hoang » ban hang, van hoang, quan hoang
hoang san » hoang van, hoang son, hoang xuan
cua triet » cua viet, su triet, va triet
chat xuc » chat huu, cam xuc, chao xu
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
nang xa » lang xa, nang ma, mang xa
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
xuc ban » duc ban, cuc ban, quoc 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 sach ty ((nang xa) OR (nang x)) hoi. hieu va chat xuc ban hoang san cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty ((nang xa) OR (nang x)) hoi. hieu va chat xuc ban hoang san cua triet".
• Adding a wildcard symbol may retrieve word variants: so sach ty ((nang xa) OR (nang x)) hoi. hieu va chat xuc ban hoang san cua triet*.