Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tro tai doan snippets" » "tro thai doan snippets", "tro tap doan snippets", "tro thi doan snippets", "tron tai doan snippets", "tao tai doan snippets", "tho tai doan 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: (((("tro tai doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tro tai doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tro tai doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tro tai doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.