Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap moi he snippets" » "phap mo he snippets", "phap boi he snippets", "pham moi he snippets", "phap moi ve snippets", "phap moi ke snippets", "phap moi de 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: (((("phap moi 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: (((("phap moi he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap moi he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap moi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.