Perhaps you should try some spelling variations:
danh cay » danh ca, danh cau, xanh cay
cay phoi » cap phoi, tay hoi, cay cho
te sach » toc sach
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va, hieu qua
ky danh » ky anh, ky dang
luc va » duc va, tuc va
loc va » hoc va
vi cuu » vi luu, vinh cuu
va cau » van cau, va cac, va dau

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) or (thu hoach)) ky danh cay phoi. hieu va cau ((luc va) OR (loc va)) hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thu hoach)) ky danh cay phoi. hieu va cau ((luc va) OR (loc va)) hanh vi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (thu hoach)) ky danh cay phoi. hieu va cau ((luc va) OR (loc va)) hanh vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thu hoach)) ky danh cay phoi. hieu va cau ((luc va) OR (loc va)) hanh vi cuu tre*.