Perhaps you should try some spelling variations:
dieu cua » dieu tra
va dinh » van dinh, va kinh, va tinh
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
sach ly » sach lo, sach ty, sach hay
cac xuc » cam xuc, cac nuoc, chat xuc
de cua » le cua, te cua
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
ma hoi » mai hoi, xa hoi, ma hoa

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 ly) or (sach y)) nang ma hoi. hieu ve cac xuc va dinh ((de cua) OR (dieu cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ly) OR (sach y)) nang ma hoi. hieu ve cac xuc va dinh ((de cua) OR (dieu cua)) te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ly) or (sach y)) nang ma hoi. hieu ve cac xuc va dinh ((de cua) OR (dieu cua)) te*".