Perhaps you should try some spelling variations:
dinh toai » dinh tai, tinh toan, dinh tri
su triet » su viet, su tien, ve triet
dinh toi » dinh tri, dinh thi, dinh moi
cua tre » cua te, cuu tre, cua triet
vu sach » vu bach, su sach, vu khach
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va, hieu van
lang ha » long ha
tuc va » thuc va, truc va, tuc xa
y lang » o lang, _ lang, tay lang
ve cam » ve cham, ve cac, va cam
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y lang ha hoi. hieu ve cam tuc va ((dinh toai) OR (dinh toi)) ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y lang ha hoi. hieu ve cam tuc va ((dinh toai) OR (dinh toi)) ((cua tre) OR (su triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y lang ha hoi. hieu ve cam tuc va ((dinh toai) OR (dinh toi)) ((cua tre) or (su triet))*".