Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"wei tang du snippets" » "wei tan du snippets", "wei zhang du snippets", "le tang du snippets", "wei nang du snippets", "wei hang dau snippets", "wei dang duc snippets"

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 ("wei tang du snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("wei tang du snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( wei tang du snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("wei tang du snippets"))) or ("locating bugs code snippets"))*.