Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong dao du snippets" » "cuong dao du snippets", "cong dan du snippets", "dong dao du snippets", "cong dao duc snippets", "cong dao duy snippets", "cong 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: (((("cong 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: (((("cong dao du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong dao du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong dao du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.