Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
te sach » toc sach
ty dang » ty xang, ty hang, ty dong
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
duc van » duc va, duc tan, duc manh
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa
vi su » va su, ve su, ki su

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 ((ty dang) or (ky dang)) xa hoi. hieu ve cam ((duc van) or (tuc va)) hanh vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty dang) OR (ky dang)) xa hoi. hieu ve cam ((duc van) OR (tuc va)) hanh vi su triet.
• Adding a wildcard symbol may retrieve word variants: te sach ((ty dang) or (ky dang)) xa hoi. hieu ve cam ((duc van) or (tuc va)) hanh vi su triet*.