Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan van moi snippets" » "tran van moi snippets", "tang van moi snippets", "luan van moi snippets", "tan van muoi snippets", "tan van loi snippets", "tan ban moi 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 van moi 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 van moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan van moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan van moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.