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