Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thac bao can snippets" » "tac bao can snippets", "thuat bao can snippets", "hoc bao can snippets", "thac bao cao snippets", "thac ban can snippets", "thac bat can 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: (((("thac bao can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thac bao can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thac bao can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thac bao can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.