Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao phap cai snippets" » "dao phat cai snippets", "dap phap cai snippets", "danh phap cai snippets", "dao phap tai snippets", "dao phap ca snippets", "dao phap cac 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: (((("dao phap cai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao phap cai snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao phap cai snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao phap cai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.