Perhaps you should try some spelling variations:
tuong chuan » thong chuan, trong chuan, tuong quan
manh tuong » manh tung, manh cuong, minh tuong
duong long » duong hong, duong trong, duong vuong
duong cong » dung cong, luong cong, duong trong
chua xang » chua nang, chuc nang, chu bang
chu xang » chu bang, chuc nang, chu quang
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: theo ((chu xang) or (chua xang)) - manh tuong chuan ((duong long) OR (duong cong)) tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xang) OR (chua xang)) - manh tuong chuan ((duong long) OR (duong cong)) tinh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xang) or (chua xang)) - manh tuong chuan ((duong long) OR (duong cong)) tinh toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xang) or (chua xang)) - manh tuong chuan ((duong long) OR (duong cong)) tinh toan ban*.