Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"len tinh ve snippets" » "yen tinh ve snippets", "den tinh ve snippets", "bien tinh ve snippets", "len trinh ve snippets", "len tinh ven snippets", "len dinh ve 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: (((("len tinh ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("len tinh ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( len tinh ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("len tinh ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.