Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, chau tinh, kieu tinh
nhanh lang » nhanh quang, nhanh thang, nhan dang
trinh toan » tinh toan, thanh toan, trinh han
lieu tinh » trieu tinh, diep tinh, bien tinh
hanh mang » nhanh mang, hanh trang, thanh hang
nong cong » cong cong, tong cong, nang cong
cua nong » cua cong, cuu nong, cua dong
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: theo ((chieu tinh) OR (lieu tinh)) - ((hanh mang) or (nhanh lang)) cua nong cong trinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (lieu tinh)) - ((hanh mang) OR (nhanh lang)) cua nong cong trinh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu tinh) OR (lieu tinh)) - ((hanh mang) or (nhanh lang)) cua nong cong trinh toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) OR (lieu tinh)) - ((hanh mang) or (nhanh lang)) cua nong cong trinh toan ban*.