Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
cua triet » cua viet, su triet, va triet
van chat » cao chat
chat luc » chat xuc, chat lua, nhan luc
nang tai » hang tai, tang tai, sang tai
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
su sach » vu sach
tai hoi » tai khoi, dai hoi, tai hai
so sach » so sanh, bo sach, co sach
luc va » duc va, tuc va, loc va
cua te » cua tu

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) OR (so sach)) ky nang tai hoi. hieu van chat luc va thanh lai ((cua triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky nang tai hoi. hieu van chat luc va thanh lai ((cua triet) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ky nang tai hoi. hieu van chat luc va thanh lai ((cua triet) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ky nang tai hoi. hieu van chat luc va thanh lai ((cua triet) or (cua te))*.