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