Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tong dam cho snippets" » "trong dam cho snippets", "thuong dam cho snippets", "tuong dan cho snippets", "tong dam choi snippets", "tong dac cho snippets", "tong day cho 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: (((("tong dam 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: (((("tong dam cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tong dam cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tong dam cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.