Perhaps you should try some spelling variations:
tieu trinh » tien trinh, tien thinh, trieu tinh
doanh sang » doanh quang, doanh ban, doanh van
nhung cong » dung cong, thong cong, hang cong
tieu tinh » trieu tinh, lieu tinh, kieu tinh
chinh cau » chinh chau, chinh ca, chinh can
cong dan » cong san, cong tan, huong dan
chan cau » phan cau, can cau, nhanh cau
sang va » hang va, song va, sang ma

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)) - doanh sang va nhung cong dan ((chan cau) OR (chinh cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu tinh) OR (tieu trinh)) - doanh sang va nhung cong dan ((chan cau) OR (chinh cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu tinh) or (tieu trinh)) - doanh sang va nhung cong dan ((chan cau) OR (chinh cau))".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu tinh) or (tieu trinh)) - doanh sang va nhung cong dan ((chan cau) OR (chinh cau))*.