Perhaps you should try some spelling variations:
khanh thuan » khanh thuong, thanh tuan, khan than
khanh luan » doanh luan, hang luan, khau luan
luong cong » dung cong, trong cong, cong cong
trinh toan » tinh toan, thanh toan, trinh han
sieu tinh » kieu tinh, sieu hinh, trieu tinh
lieu tinh » trieu tinh, diep tinh, bien tinh
van luong » van duong, van cuong, nang luong
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((sieu tinh) OR (lieu tinh)) - ((khanh luan) or (khanh thuan)) van luong cong trinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((sieu tinh) OR (lieu tinh)) - ((khanh luan) OR (khanh thuan)) van luong cong trinh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((sieu tinh) OR (lieu tinh)) - ((khanh luan) or (khanh thuan)) van luong cong trinh toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((sieu tinh) OR (lieu tinh)) - ((khanh luan) or (khanh thuan)) van luong cong trinh toan tap*.