Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac lieu hop snippets" » "bac lieu hop snippets", "cac kieu hop snippets", "cac bieu hop snippets", "cac lieu hoc snippets", "cac lien hop snippets", "cac lieu ho 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 lieu hop 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 lieu hop snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac lieu hop snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac lieu hop snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.