Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tac van cuc snippets" » "tac van code snippets", "tac vang cuc snippets", "cac van cuc snippets", "tac va cuc snippets", "tac van duc snippets", "tac van luc snippets", "tac van cu snippets"
"python using java snippets" » "python using data 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 cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tac van cuc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tac van cuc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac van cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.