Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using sat snippets" » "python using data snippets", "python using a snippets", "python using raw snippets"
"tang van duoc snippets" » "dang van duoc snippets", "hoang van duoc snippets", "trong van duoc snippets", "tang van duc snippets", "tang vat duoc snippets", "tang tan duoc snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tang van duoc snippets") or ("python using sat snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tang van duoc snippets") OR ("python using sat snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tang van duoc snippets ) or ( python using sat snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang van duoc snippets") or ("python using sat snippets"))) or ("locating bug core snippets"))*.