Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chua van cau snippets" » "chuan van cau snippets", "chu van cau snippets", "chua va cau snippets", "chua van dau snippets", "chua van hau snippets", "chua van chat 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: (((("chua van cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chua van cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chua van cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chua van cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.