Perhaps you should try some spelling variations:
tieu trinh » tien trinh, tien thinh, trieu tinh
lan phuong » van phuong, dan phuong, lan thuong
tieu tinh » trieu tinh, lieu tinh, kieu tinh
hanh mang » nhanh mang, hanh trang, nhanh lang
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
toan cau » toan cao, toan ban, toan tap
luan » quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((tieu tinh) OR (tieu trinh)) - hanh mang ((lan phuong) or (luan van)) cong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu tinh) OR (tieu trinh)) - hanh mang ((lan phuong) OR (luan van)) cong manh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu tinh) OR (tieu trinh)) - hanh mang ((lan phuong) or (luan van)) cong manh toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu tinh) OR (tieu trinh)) - hanh mang ((lan phuong) or (luan van)) cong manh toan cau*.