Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
toc sach » hoc sach, doc sach, thuoc sach
nang van » dang van, tang van, lang van
duc manh » suc manh, duc anh, duc minh
hoc anh » hoc nganh, hoc nhanh, ngoc anh
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu bach) or (((toc sach) or (hoc anh)))) ky nang van hoa. hieu ve pham duc manh hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu bach) OR (((toc sach) OR (hoc anh)))) ky nang van hoa. hieu ve pham duc manh hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((vu bach) or (((toc sach) or (hoc anh)))) ky nang van hoa. hieu ve pham duc manh hanh vi cua tre*.