Perhaps you should try some spelling variations:
tieu trinh » tien trinh, tien thinh, trieu tinh
thong cong » trong cong, tong cong, thong thong
tieu tinh » trieu tinh, lieu tinh, kieu tinh
quang va » quang van, quan va, quang ma
va thong » va thuong, va phuong, he thong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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)) - nhanh quang va thong cong tan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu tinh) OR (tieu trinh)) - nhanh quang va thong cong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu tinh) OR (tieu trinh)) - nhanh quang va thong cong tan toan cao*.