Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cho can hoc snippets" » "cho can code snippets", "cho cac hoc snippets", "cho phan hoc snippets", "cho cong hoc snippets", "cho van hoc snippets", "cho dan hoc snippets", "cho cao hoc snippets"
"python using java snippets" » "python using data 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: (((("cho can hoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho can hoc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cho can hoc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho can hoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.