Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan moi voi snippets" » "ban moi voi snippets", "can moi voi snippets", "tan hoi voi snippets", "tan doi voi snippets", "tan moi doi snippets", "tan moi thoi 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: (((("tan moi voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tan moi voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan moi voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan moi voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.