Perhaps you should try some spelling variations:
thien van » thi van
xanh hanh » danh thanh, ban hanh, van hanh
hieu van » hieu va, lieu va, hieu ve
te sach » toc sach
chat tu » nhat tu, chai tu, chay tu
tu xanh » tu hanh, tu manh, tu anh
hanh va » hang va, hanh vi
dau tre » dau tren, dau tien, cau tren
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 x ho. ((hieu van) or (thien van)) chat tu xanh hanh va dau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang x ho. ((hieu van) OR (thien van)) chat tu xanh hanh va dau tre.
• Adding a wildcard symbol may retrieve word variants: te sach y nang x ho. ((hieu van) or (thien van)) chat tu xanh hanh va dau tre*.