Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh lap » thanh san, phan lap, thanh hai
cua triet » cua viet, su triet, va triet
cham duc » cham soc, pham duy, phan duc
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu ve » hieu va, hieu van
lap cua » lai cua, tap cua, lam cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty nang x ho. hieu ve ((cham duc) OR (pham duc)) van thanh lap cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang x ho. hieu ve ((cham duc) OR (pham duc)) van thanh lap cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang x ho. hieu ve ((cham duc) OR (pham duc)) van thanh lap cua triet*.