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