Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc va dong snippets" » "doc van dong snippets", "doc ha dong snippets", "doc xa dong snippets", "duoc va dong snippets", "hoc va dong snippets", "duc va dong 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: (((("doc va dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc va dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc va dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc va dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.