Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"python using java snippets" » "python using data snippets"
"hao van duc snippets" » "dao van duc snippets", "ho van duc snippets", "cao van duc snippets", "hao van duy snippets", "hao van du snippets", "hao tran duc 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: (((("hao van duc snippets") or ("python using java snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hao van duc snippets") OR ("python using java snippets"))) OR ("locating bug code slippers")).
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• Adding a wildcard symbol may retrieve word variants: (((("hao van duc snippets") or ("python using java snippets"))) or ("locating bug code slippers"))*.