Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
va cham » va chat, va tham
te sach » toc sach
va cao » va cac, va co, va dao
tuc va » thuc va, truc va, tuc xa
va dan » ca dan, va dao, va dau
dan de » dan den, dang de, van de
de cua » le cua, te cua, dieu cua
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho

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 thu nang x hoi. hieu ((((va cao) or (ve cac))) or (va cham)) tuc va dan de cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thu nang x hoi. hieu ((((va cao) OR (ve cac))) OR (va cham)) tuc va dan de cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach thu nang x hoi. hieu ((((va cao) or (ve cac))) or (va cham)) tuc va dan de cua triet*.