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
trang cua » tranh cua, tang cua, thang cua
trung cua » truong cua, trung tuan, trung cap
cong van » cong vang, cong san, song van
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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 - hanh ((trang cua) or (trung cua)) nhung cong van ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - hanh ((trang cua) OR (trung cua)) nhung cong van ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - hanh ((trang cua) or (trung cua)) nhung cong van ((toan cau) or (toan tap))*.