Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh do, thanh hoai
thanh moi » thanh loi, thanh hoa, thanh hai
hanh doi » hanh noi, hang doi, hanh moi
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
va dat » va dao, va dau, va dap
nuoc » quoc, duoc, ngoc

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 ma hoa. hieu va dat nuoc va ((hanh doi) or (((thanh doi) OR (thanh moi)))) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ma hoa. hieu va dat nuoc va ((hanh doi) OR (((thanh doi) OR (thanh moi)))) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ma hoa. hieu va dat nuoc va ((hanh doi) or (((thanh doi) OR (thanh moi)))) cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ma hoa. hieu va dat nuoc va ((hanh doi) or (((thanh doi) OR (thanh moi)))) cuu tre*.