Perhaps you should try some spelling variations:
cuu ban » cuu van, cua ban, cuu san
cuc ban » cua ban, cac ban, duc ban
cua tuc » cua duc, cua tu, cua thuoc
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
sach v » sach va, sach 2, sach vay
vi cua » vai cua, di cua
ve cac » va cac, vien cac

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