Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho do cua snippets" » "pho da cua snippets", "pho ho cua snippets", "pho o cua snippets", "pho doi cua snippets", "pho co cua snippets", "pho de cua 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 do cua 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 do cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho do cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho do cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.