Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phong va ca snippets" » "thong va ca snippets", "phung van ca snippets", "thong van ca snippets", "phong va cac snippets", "phong va cao snippets", "phong va cai 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 va ca 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 va ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phong va ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phong va ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.