Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"vang tao hoi snippets" » "vang tao code snippets", "sang tao hoi snippets", "nang tao hoi snippets", "hang tai hoi snippets", "vang tao khoi snippets", "vang tao boi snippets", "vang tay hoi 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: (((("vang tao hoi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vang tao hoi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( vang tao hoi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vang tao hoi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.