Perhaps you should try some spelling variations:
nhanh thang » nhanh thanh, nhanh quang, hanh trang
canh trinh » canh tranh, hanh trinh, canh tinh
nguong dan » huong dan
hien xanh » hien hanh, hien nhanh, chieu xanh
van thang » van thanh, van khang, van hang
dan chan » dan gian, dan ca, van chat
chan cap » khan cap, than cap, cao cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - canh trinh ((nhanh thang) or (van thang)) nguong dan chan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - canh trinh ((nhanh thang) OR (van thang)) nguong dan chan cap.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - canh trinh ((nhanh thang) or (van thang)) nguong dan chan cap*.