Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
thien van » thi van
su triet » su viet, su tien, ve triet
sach tu » sach thu, cach tu, sach ty
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
xuc ban » cuc ban, quoc ban, xuat ban
duc ban » duc tan, duc van, dua ban
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: tu ((sach tu) or (cach thuc)) nang xa hoi. thien van cam ((xuc ban) or (duc ban)) hanh vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tu) OR (cach thuc)) nang xa hoi. thien van cam ((xuc ban) OR (duc ban)) hanh vi su triet.
• Adding a wildcard symbol may retrieve word variants: tu ((sach tu) or (cach thuc)) nang xa hoi. thien van cam ((xuc ban) or (duc ban)) hanh vi su triet*.