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