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"
"van van thanh snippets" » "van ban thanh snippets", "van van tuan snippets", "tan van thanh snippets", "san van thanh 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: (((("python using sat snippets") or ("van van thanh snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using sat snippets") OR ("van van thanh snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using sat snippets ) or ( van van thanh snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using sat snippets") or ("van van thanh snippets"))) or ("locating bug core snippets"))*.