Perhaps you should try some spelling variations:
"lochating bug code snippets" » "locating bug code snippets", "lochating bug code slippers", "lochating bug core snippets"
"python using java snippets" » "python using data snippets", "python using java slippers"
"thu tin tuc snippets" » "thuc tin tuc snippets", "tu tin tuc snippets", "thu hien tuc snippets", "thu tin tu snippets", "thu tin thuoc snippets", "thu lien tuc snippets", "thu tin tuc slippers"

Try widening your search to All Fields.

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