Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan dao cho snippets" » "van dao cho snippets", "tac dao cho snippets", "tan dac cho snippets", "tan cao cho snippets", "tan dao ho 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 dao cho 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 dao cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan dao cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan dao cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.