Perhaps you should try some spelling variations:
sieu trinh » tieu trinh, lieu tinh, viet trinh
tien trinh » tien thinh, bien tinh, tien thanh
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, nhung don
trang cua » tranh cua, tang cua, trung cua
hang cong » dang cong, hang nong, bang cong
tan toan » tan tran, tap toan, van toan
toan ban » van 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 trinh) OR (tien trinh)) - hanh trang cua ((nhung cong) or (hang cong)) tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((sieu trinh) OR (tien trinh)) - hanh trang cua ((nhung cong) OR (hang cong)) tan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((sieu trinh) OR (tien trinh)) - hanh trang cua ((nhung cong) or (hang cong)) tan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((sieu trinh) OR (tien trinh)) - hanh trang cua ((nhung cong) or (hang cong)) tan toan ban*.