Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi dich cua snippets" » "thi bich cua snippets", "tri dich cua snippets", "tnhh dich cua snippets", "thi dinh cua snippets", "thi ich cua snippets", "thi kich 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 dich cua 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 dich cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi dich cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi dich cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.