Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
cau nhung » cam nhung, cau phuong, canh nhung
cong cau » cong cu, cong chuc, thong cau
van than » van thanh, van thang, van phan
van tuan » van quan, van ban, anh tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien hach - thanh cong cau nhung cong ((van than) OR (van tuan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien hach - thanh cong cau nhung cong ((van than) OR (van tuan)) cao".
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh cong cau nhung cong ((van than) OR (van tuan)) cao*.