Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thap co dong snippets" » "tap co dong snippets", "thay co dong snippets", "phap cho dong snippets", "thap o dong snippets", "thap cong dong snippets", "thap lao dong 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: (((("thap co dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thap co dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thap co dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thap co dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.