Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi hien doc snippets" » "thi lien doc snippets", "thi huyen doc snippets", "thi hue doc snippets", "thi khien hoc snippets", "thi bien duoc snippets", "thi hien dai 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: (((("thi hien 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: (((("thi hien doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi hien doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi hien doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.