Perhaps you should try some spelling variations:
tham nuoc » thay nuoc, thoat nuoc, nha nuoc
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
danh vai » danh sai, danh va, doanh van
va danh » va dinh, va dan, va hanh
te sach » toc sach
tang ma » mang may, tang van
sang ma » nang ma, sang tao, mang may
va tham » van tham, va cham, va thanh

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 ((sang ma) or (tang ma)) hoi. lieu va tham nuoc va danh vai ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((sang ma) OR (tang ma)) hoi. lieu va tham nuoc va danh vai ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((sang ma) or (tang ma)) hoi. lieu va tham nuoc va danh vai ((cua triet) OR (va triet))".
• Adding a wildcard symbol may retrieve word variants: te sach y ((sang ma) or (tang ma)) hoi. lieu va tham nuoc va danh vai ((cua triet) OR (va triet))*.