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
lanh hang » lanh bang, lanh sang, tranh hang
va thong » va thuong, va phuong, he thong
cong tan » cong tac, cong san, cong thanh
chan cau » phan cau, chinh cau, nhanh cau
can cau » van cau, ban cau, ca cau

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)) - lanh hang va thong cong tan ((chan cau) or (can cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu tinh) OR (tieu trinh)) - lanh hang va thong cong tan ((chan cau) OR (can cau)).
• Adding a wildcard symbol may retrieve word variants: theo ((tieu tinh) or (tieu trinh)) - lanh hang va thong cong tan ((chan cau) or (can cau))*.