Perhaps you should try some spelling variations:
cuc ban » cua ban, cac ban, cuu ban
xuc ban » duc ban, quoc ban, xuat ban
cua tuc » cua duc, cua tu, cua thuoc
hieu ve » hieu va, hieu van
may hoi » may thoi, tay hoi, mai hoi
sach v » sach va, sach y, sach vay
sach 2 » sach y
vi cua » vai cua, di cua
ve cac » va cac, vien cac
mang » nang, dang, bang

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 v) OR (sach 2)) mang may hoi. hieu ve cac ((xuc ban) or (cuc ban)) hanh vi cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach v) OR (sach 2)) mang may hoi. hieu ve cac ((xuc ban) OR (cuc ban)) hanh vi cua tuc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach v) OR (sach 2)) mang may hoi. hieu ve cac ((xuc ban) or (cuc ban)) hanh vi cua tuc".
• Adding a wildcard symbol may retrieve word variants: te ((sach v) OR (sach 2)) mang may hoi. hieu ve cac ((xuc ban) or (cuc ban)) hanh vi cua tuc*.