Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghia tu con snippets" » "nghia duy con snippets", "nghia cua con snippets", "nghia xa con snippets", "nghia tu cong snippets", "nghia tu chon snippets", "nghia tu co 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: (((("nghia tu con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nghia tu con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghia tu con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghia tu con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.