Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tam den hoc snippets" » "tam dien hoc snippets", "tam ben hoc snippets", "tac den hoc snippets", "tam dan hoc snippets", "tam de 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: (((("tam den 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: (((("tam den hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tam den hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tam den hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.