Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chan cho hoc snippets" » "chat cho hoc snippets", "han cho hoc snippets", "chuan chon hoc snippets", "chan co hoc snippets", "chan khoa 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: (((("chan cho 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: (((("chan cho hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chan cho hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chan cho hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.