Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho cong cua snippets" » "pho uong cua snippets", "cho cong cua snippets", "pho dong cua snippets", "pho cong cu snippets", "pho huong 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 cong 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 cong cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho cong cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho cong cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.