Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"vu khieu dat snippets" » "vu khieu nai snippets", "vu bieu dat snippets", "vu chieu day snippets", "ve khieu dat snippets", "vu khiem dat snippets", "va hieu dat 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: (((("vu khieu dat snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vu khieu dat snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( vu khieu dat snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vu khieu dat snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.