Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh tri » thanh tri, hanh tai, hanh trinh
van hanh » van thanh, ban hanh, van anh
nuoc van » nuoc va, nuoc san, luoc van
te sach » toc sach
sang ma » tang ma, sang tao, mang may
nang ma » tang ma, nang cao, mang may
ve cai » va cai, ve cac, ve tai
ve cap » ve cac, le cap, ve cau

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