Perhaps you should try some spelling variations:
"phap nuoi con snippets" » "phap nuoc con snippets", "phau nguoi con snippets", "chan nuoi con snippets", "phap nuoi lon snippets", "phap nguoi cong snippets", "phap nuoc cong snippets"
"dung java java snippets" » "dung va java 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 nuoi con snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap nuoi con snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap nuoi con snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap nuoi con snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.