Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
chuc nhung » chua nhung, phuc nhung, thuc nhung
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
cong chuc » cong thuc, cong cu, cong cua
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 chuc nhung cong ((van than) or (van tuan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - thanh cong chuc nhung cong ((van than) OR (van tuan)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh cong chuc nhung cong ((van than) or (van tuan)) cao*.