Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho can cong snippets" » "pho cac cong snippets", "pho cao cong snippets", "pho van cong snippets", "cho can cong snippets", "pho cap cong snippets", "pho cam cong 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 can cong 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 can cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho can cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho can cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.