Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cam luoc » cam xuc, tom luoc, cam lo
dang van » hoang van, hang va
luoc van » luoc can, luoc va, luc van
anh dat » thanh dat, lanh dao, dinh dat
anh dao » lanh dao, hanh dao, doanh dao
hieu va » lieu va, hieu qua
lang ha » long ha
va cam » va cham, va cac, va cao
bai ky » ban ky, sai ky, bac ky
tu bai » tu ban, tu bat, te bai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu bai ky ((lang ha) or (dang van)) hoi. hieu va cam luoc van ((anh dao) OR (anh dat)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu bai ky ((lang ha) OR (dang van)) hoi. hieu va cam luoc van ((anh dao) OR (anh dat)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu bai ky ((lang ha) or (dang van)) hoi. hieu va cam luoc van ((anh dao) OR (anh dat)) cua triet".
• Adding a wildcard symbol may retrieve word variants: tu bai ky ((lang ha) or (dang van)) hoi. hieu va cam luoc van ((anh dao) OR (anh dat)) cua triet*.