Perhaps you should try some spelling variations:
ve triet » va trien
nuoc van » nuoc va, nuoc san, luoc van
su triet » su viet, su tien
hanh tri » thanh tri, hanh tai, hanh trinh
van hanh » van thanh, ban hanh, van anh
cap nuoc » dat nuoc
hieu ve » hieu va, hieu van
tang ma » mang may, tang van
te sach » toc sach
ve cap » ve cac, le cap, ve cai

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 ((tang ma) or (nang cao)) hoa. hieu ve cap nuoc van hanh tri ((su triet) OR (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((tang ma) OR (nang cao)) hoa. hieu ve cap nuoc van hanh tri ((su triet) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((tang ma) or (nang cao)) hoa. hieu ve cap nuoc van hanh tri ((su triet) OR (ve triet))".
• Adding a wildcard symbol may retrieve word variants: te sach y ((tang ma) or (nang cao)) hoa. hieu ve cap nuoc van hanh tri ((su triet) OR (ve triet))*.