Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh lap » thanh san, phan lap, thanh hai
chat buc » chat xuc, chat ban, chat huu
hanh lai » hanh lam, hanh tai, thanh loi
su sach » so sach, vu sach
sach ly » sach y, sach lo, sach ty
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
ve chat » va chat, van chat
buc xa » tuc xa
ma hoi » mai hoi, xa hoi, me hoi

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 ly nang ((ma hoi) OR (ma hoa)). hieu ve chat buc xa ((hanh lai) or (thanh lap)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly nang ((ma hoi) OR (ma hoa)). hieu ve chat buc xa ((hanh lai) OR (thanh lap)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ly nang ((ma hoi) OR (ma hoa)). hieu ve chat buc xa ((hanh lai) or (thanh lap)) cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ly nang ((ma hoi) OR (ma hoa)). hieu ve chat buc xa ((hanh lai) or (thanh lap)) cua triet*.