Perhaps you should try some spelling variations:
thanh thuong » thanh chuong, thanh phuong, khanh thuong
thanh huong » thanh hung, thanh cong, anh huong
trinh toan » tinh toan, thanh toan, trinh han
lang cong » dang cong, bang cong, hang cong
ho chieu » theo chieu, hoc thieu, doi chieu
toan ban » van ban
ho lieu » so lieu, co lieu, ho kieu
va lang » va nang, hoa lang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho lieu) or (ho chieu)) tinh - ((thanh thuong) OR (thanh huong)) va lang cong trinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho lieu) OR (ho chieu)) tinh - ((thanh thuong) OR (thanh huong)) va lang cong trinh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho lieu) or (ho chieu)) tinh - ((thanh thuong) OR (thanh huong)) va lang cong trinh toan ban".
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) or (ho chieu)) tinh - ((thanh thuong) OR (thanh huong)) va lang cong trinh toan ban*.