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