Perhaps you should try some spelling variations:
"locating bung code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"van xac cao snippets" » "va xac cao snippets", "van xay cao snippets", "van hac cao snippets", "van xa cao snippets", "van bac cao snippets", "van mach cao snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("van xac cao snippets"))) or ("locating bung code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van xac cao snippets"))) OR ("locating bung code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van xac cao snippets ))) or ( locating bung code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van xac cao snippets"))) or ("locating bung code snippets"))*.