Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thao sat doc snippets" » "khao sat doc snippets", "thao van doc snippets", "tao sau doc snippets", "thao dat doc snippets", "thao sat dac snippets", "thao dat duoc 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: (((("thao sat doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thao sat doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thao sat doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thao sat doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.