Perhaps you should try some spelling variations:
phong kham » phong nam
kham nhung » tham nhung, khac nhung, kham xung
nhung cong » dung cong, thong cong, hang cong
duoc dien » duoc lieu
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
doc diep » ngoc diep, dac diem, doc hieu
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc diep) OR (duoc dien)) tinh - khanh phong kham nhung cong manh toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc diep) OR (duoc dien)) tinh - khanh phong kham nhung cong manh toan cao".
• Adding a wildcard symbol may retrieve word variants: ((doc diep) OR (duoc dien)) tinh - khanh phong kham nhung cong manh toan cao*.