Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gap duoc hoc snippets" » "giac duoc hoc snippets", "ngap nuoc hoc snippets", "tao duoc hoc snippets", "gap quoc hoi 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: (((("gap duoc 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: (((("gap duoc hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gap duoc hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gap duoc hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.