Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tat sang cho snippets" » "tat thang cho snippets", "lam sang cho snippets", "san sang cho snippets", "tat danh cho snippets", "tat dung cho snippets", "tat sang tao 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: (((("tat sang 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: (((("tat sang cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tat sang cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tat sang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.