Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dang xay » dang van, van xay
thi nang » thi cong, ki nang, thi hanh
te sach » toc sach
thi van » thi lan, thi hanh
truc va » thuc va, thuc vat, trung va
va xanh » va danh, va hanh, va anh
xanh de » hanh de, xanh di, thanh de
de cua » le cua, te cua, dieu cua

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 x) or (dang xay)) hoi. ((thi van) OR (thi nang)) cau truc va xanh de cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang x) OR (dang xay)) hoi. ((thi van) OR (thi nang)) cau truc va xanh de cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((nang x) or (dang xay)) hoi. ((thi van) OR (thi nang)) cau truc va xanh de cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang x) or (dang xay)) hoi. ((thi van) OR (thi nang)) cau truc va xanh de cua triet*.