Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cau tren » cu tren, dau tren, ca tren
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
duc van » duc tan, duc manh, duc phan
y nang » ky nang, ly nang, v nang
ve cao » va cao, ve bao, ve cac
anh ve » hanh ve, anh va, anh viet
ve cau » ke cau, va cau, ve cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach y nang ma hoa. hieu ve cao ((((duc van) or (suc manh))) or (duc va)) anh ve cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y nang ma hoa. hieu ve cao ((((duc van) OR (suc manh))) OR (duc va)) anh ve cau tren.
• Adding a wildcard symbol may retrieve word variants: thuat sach y nang ma hoa. hieu ve cao ((((duc van) or (suc manh))) or (duc va)) anh ve cau tren*.