Perhaps you should try some spelling variations:
choi tre » cho tre, tuoi tre, khoe tre
dia danh » dia ban, gia dinh
hieu va » lieu va, hieu qua
cau luc » cau truc, cau phuc
chi tre » cho tre, chi tro, chi tiet
va dinh » van dinh, va kinh, va tinh
nang o » nang co, nang ho, nang ro
va cau » van cau, va cac, va dau
o hai » co hai, so hai, o lai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky nang o hai. hieu va cau luc ((dia danh) or (va dinh)) va ((chi tre) OR (choi tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang o hai. hieu va cau luc ((dia danh) OR (va dinh)) va ((chi tre) OR (choi tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang o hai. hieu va cau luc ((dia danh) or (va dinh)) va ((chi tre) OR (choi tre))".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang o hai. hieu va cau luc ((dia danh) or (va dinh)) va ((chi tre) OR (choi tre))*.