Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thoi can ho snippets" » "khoi can ho snippets", "thoi gian ho snippets", "thoai cac ho snippets", "thoi can tho snippets", "thoi can bo snippets", "thoi van ho 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: (((("thoi can 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: (((("thoi can ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thoi can ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thoi can ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.