Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hang dau » hang va, hang tai
sach lo » sach dao, sach doi, sach hoi
dau hoi » cau hoi, dai hoi, dan hoi
sach ly » sach y, sach ty, sach hay
hieu va » lieu va, hieu qua
danh vi » hanh vi, dinh vi, danh di
va cam » va cham, va cac, va cao
xuc va » tuc va, luc va, xac va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ly) OR (sach lo)) hang dau hoi. hieu va cam ((xuc va) or (duc va)) danh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ly) OR (sach lo)) hang dau hoi. hieu va cam ((xuc va) OR (duc va)) danh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ly) OR (sach lo)) hang dau hoi. hieu va cam ((xuc va) or (duc va)) danh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: te ((sach ly) OR (sach lo)) hang dau hoi. hieu va cam ((xuc va) or (duc va)) danh vi cua triet*.