Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cham de cua snippets" » "cham den cua snippets", "chem de cua snippets", "chat deo cua snippets", "cham le cua snippets", "cham te cua snippets", "cham dieu cua 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: (((("cham de cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cham de cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cham de cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham de cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.