Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phuc liem he snippets" » "phuc liem ha snippets", "phuc hiem he snippets", "phuc lieu che snippets", "thuc liem he snippets", "phu liem he 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: (((("phuc liem he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phuc liem he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phuc liem he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phuc liem he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.