Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac dieu xe snippets" » "cac kieu xe snippets", "cau dieu xe snippets", "cac bieu xe snippets", "cac dieu nen snippets", "cac dieu che 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: (((("cac dieu xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac dieu xe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac dieu xe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac dieu xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.