Perhaps you should try some spelling variations:
nang van » dang van, tang van, lang van
dau tren » dau tien, dat tren, dau tieng
te sach » toc sach
van hoe » van hoa, van hoc, van hieu
va nang » van nang, da nang, cam nang
va danh » va dan, va hanh, dia danh
va dinh » van dinh, va kinh, va tinh
y nang » ky nang, ly nang, v nang
va dau » va dao

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 y nang van hoe. lieu va nang luc ((va danh) or (va dinh)) va dau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang van hoe. lieu va nang luc ((va danh) OR (va dinh)) va dau tren.
• Adding a wildcard symbol may retrieve word variants: te sach y nang van hoe. lieu va nang luc ((va danh) or (va dinh)) va dau tren*.