Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan cho loc snippets" » "danh cho loc snippets", "san cho loc snippets", "dac cho loc snippets", "dan chon loc snippets", "dan cho hoc snippets", "dan cho lon 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: (((("dan cho loc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan cho loc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan cho loc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan cho loc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.