Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tru cua du snippets" » "trau cua du snippets", "trua cua du snippets", "tu cua du snippets", "tru cua duc snippets", "tru cua ndu snippets", "tru cua su 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: (((("tru cua 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: (((("tru cua du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tru cua du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tru cua du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.