Perhaps you should try some spelling variations:
"trong ca cham snippets" » "trong ca code snippets", "trong cac cham snippets", "trong van cham snippets", "trong nha cham snippets", "trong cau cham snippets", "trong va cham snippets", "trong co cham snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java 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: (((("trong ca cham snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong ca cham snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trong ca cham snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong ca cham snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.