Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
hoc thien » hoc hien, hoc thieu, hoc thiet
thang cua » thong cua, hang cua, than cua
tranh cua » doanh cua
hang cong » dang cong, hang nong, bang cong
manh cua » doanh cua, ban cua
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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 ((thang cua) or (((tranh cua) or (manh cua)))) hang cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - hanh ((thang cua) OR (((tranh cua) OR (manh cua)))) hang cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - hanh ((thang cua) or (((tranh cua) or (manh cua)))) hang cong dan than ban*.