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