Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac phat cua snippets" » "tac pham cua snippets", "tam phat cua snippets", "tan phat cua snippets", "tac nhat cua snippets", "tac chat cua snippets", "tac hai 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: (((("tac phat 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: (((("tac phat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac phat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac phat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.