Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh ve cot snippets" » "hanh vi cot snippets", "hanh va cot snippets", "hanh kem cot snippets", "hanh ve co snippets", "hanh ve mot 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: (((("hanh ve cot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh ve cot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh ve cot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh ve cot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.