Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho cach cua snippets" » "kho canh cua snippets", "tho cach cua snippets", "khoa sach cua snippets", "kho cac cua snippets", "kho cach dua 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: (((("kho cach 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: (((("kho cach cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho cach cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho cach cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.