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