Perhaps you should try some spelling variations:
thien chinh » tien thinh, thien chien, thi chinh
theo chinh » te chinh, che chinh, thi chinh
nhung cong » dung cong, thong cong, hang cong
lang cua » hang cua, long cua, tang cua
mang cua » manh cua, dung cua, ban cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chinh) OR (thien chinh)) sach - nhanh ((lang cua) or (mang cua)) nhung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chinh) OR (thien chinh)) sach - nhanh ((lang cua) OR (mang cua)) nhung cong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chinh) OR (thien chinh)) sach - nhanh ((lang cua) or (mang cua)) nhung cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chinh) OR (thien chinh)) sach - nhanh ((lang cua) or (mang cua)) nhung cong dan toan cau*.