Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"bac can hoan snippets" » "bac can code snippets", "bac van hoan snippets", "bac luan hoan snippets", "bac cac khoan snippets", "ban can hoan snippets", "bat can hoan snippets", "tac can hoan 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: (((("bac can hoan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bac can hoan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( bac can hoan snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bac can hoan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.