Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
cua triet » cua viet, su triet, va triet
nang dau » hang dau, xang dau, nang du
van cham » van chat, va cham, van pham
van tham » van thanh, van tuan, van chat
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
dau hoi » cau hoi, dai hoi, dan hoi
lap cua » lai cua, tap cua, lam cua
soc va » hoc va, loc va, doc va

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 dau hoi. thien ((van cham) or (van tham)) soc va thanh lap cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang dau hoi. thien ((van cham) OR (van tham)) soc va thanh lap cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang dau hoi. thien ((van cham) or (van tham)) soc va thanh lap cua triet*.