Perhaps you should try some spelling variations:
"creating a case snippets" » "creating a code snippets", "creating _ case snippets", "reading a case snippets"
"locating bug core snippets" » "locating bug code snippets"
"creating da tu snippets" » "creating _ tu snippets", "creating dau tu snippets", "creating dan tu snippets", "creating dai tu 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: (((("creating da tu snippets") or ("creating a case snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("creating da tu snippets") OR ("creating a case snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( creating da tu snippets ) or ( creating a case snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("creating da tu snippets") or ("creating a case snippets"))) or ("locating bug core snippets"))*.