Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gian dac hoc snippets" » "gian dan hoc snippets", "gian cac hoc snippets", "giang day hoc snippets", "gian dai hoc snippets", "gian day 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: (((("gian dac 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: (((("gian dac hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gian dac hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian dac hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.