Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can vong doi snippets" » "can dong doi snippets", "can song doi snippets", "lang vong doi snippets", "can trong doi snippets", "can huong doi snippets", "can dung doi 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: (((("can vong doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can vong doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can vong doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can vong doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.