Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong chat du snippets" » "cong nhat du snippets", "cong cua du snippets", "cong ha du snippets", "cong chat di snippets", "cong chat huu snippets", "cong chat 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: (((("python using java snippets") or ("cong chat du snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("cong chat du snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( cong chat du snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("cong chat du snippets"))) or ("locating bug code snippets"))*.