Perhaps you should try some spelling variations:
tieu trinh » tien trinh, tien thinh, trieu tinh
hanh trinh » canh tranh, hanh chinh
luat chung » luan chung, luat thuong, cua chung
trinh toan » tinh toan, trinh han, trinh quan
thanh toan » thanh hoa, thanh san, tinh toan
luat hang » luat hanh, luat quang, luat huong

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 trinh - hanh trinh ((luat hang) or (luat chung)) cong ((trinh toan) OR (thanh toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu trinh - hanh trinh ((luat hang) OR (luat chung)) cong ((trinh toan) OR (thanh toan)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu trinh - hanh trinh ((luat hang) or (luat chung)) cong ((trinh toan) OR (thanh toan)) tap".
• Adding a wildcard symbol may retrieve word variants: theo tieu trinh - hanh trinh ((luat hang) or (luat chung)) cong ((trinh toan) OR (thanh toan)) tap*.