Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son dao du snippets" » "so dao du snippets", "son da du snippets", "dong dao du snippets", "son dao duc snippets", "son dao duy snippets", "son dao do 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: (((("son dao du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son dao du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son dao du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son dao du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.