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