Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuc trien du snippets" » "buoc trien du snippets", "cua triet du snippets", "duc thien du snippets", "cuc trien cua snippets", "cuc trien quy snippets", "cuc truyen du 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: (((("cuc trien du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuc trien du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuc trien du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuc trien du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.