Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac van gom snippets" » "tac vang gom snippets", "cac van gom snippets", "tac va gom snippets", "tac van ngoc snippets", "tac van giam snippets", "tac phan gom 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 van gom 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 van gom snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac van gom snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac van gom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.