Perhaps you should try some spelling variations:
khong trong » khoang trong, thong trong, phong trong
chieu xanh » chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, hieu cach
chieu sang » hieu lang, nhieu tang
hanh trung » thanh trung, hanh trang, manh trung
trong tinh » truong tinh, trong kinh, trong sinh
trung cua » truong cua, trung tuan, trung cap
cua khong » hua khong, cua phuong, cua thuong
toan ban » van ban

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) or (((chieu sach) OR (chieu sang)))) - hanh trung cua khong trong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (((chieu sach) OR (chieu sang)))) - hanh trung cua khong trong tinh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (((chieu sach) OR (chieu sang)))) - hanh trung cua khong trong tinh toan ban".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (((chieu sach) OR (chieu sang)))) - hanh trung cua khong trong tinh toan ban*.