Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
nang ma » tang ma, sang ma, nang cao
sach ty » sach tu, sach thu, xach tay
lam xuc » cam xuc, lam duoc
xuc ban » duc ban, cuc ban, quoc ban
hanh va » hang va
van lam » van nam

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat ((sach ty) OR (sach y)) nang ma hoa. hieu van lam xuc ban ((hanh vi) or (hanh va)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat ((sach ty) OR (sach y)) nang ma hoa. hieu van lam xuc ban ((hanh vi) OR (hanh va)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sach ty) OR (sach y)) nang ma hoa. hieu van lam xuc ban ((hanh vi) or (hanh va)) cua triet".
• Adding a wildcard symbol may retrieve word variants: thuat ((sach ty) OR (sach y)) nang ma hoa. hieu van lam xuc ban ((hanh vi) or (hanh va)) cua triet*.