Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi hien cd snippets" » "thi lien cd snippets", "thi huyen cd snippets", "thi hue cd snippets", "thi hien cac snippets", "thi hien cau snippets", "thi hien cua 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: (((("thi hien cd snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi hien cd snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi hien cd snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi hien cd snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.