Perhaps you should try some spelling variations:
khong thong » thong thong, khong trong, thong thuong
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
trinh cua » tinh cua, trinh quan, trinh luan
thong dan » thong van, tuong dan, thong den
gian cac » gian dan, gian cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - hanh ((trinh cua) OR (trinh luat)) khong thong dan gian cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - hanh ((trinh cua) OR (trinh luat)) khong thong dan gian cac".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh ((trinh cua) OR (trinh luat)) khong thong dan gian cac*.