Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh chi hoat snippets" » "anh che hoat snippets", "anh chi hoa snippets", "anh phi hoat snippets", "banh chi hoat snippets", "danh chi hoat snippets", "anh thi hoat 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: (((("anh chi hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh chi hoat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh chi hoat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh chi hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.