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