Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"truc lap hoc snippets" » "truc va hoc snippets", "truc may hoc snippets", "tu lap hoc snippets", "truc lop hoc snippets", "truc lap doc snippets", "truc phap hoc 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: (((("truc lap hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("truc lap hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( truc lap hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truc lap hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.