Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
cong thanh » dong thanh, cong trinh, truong thanh
hoc thien » hoc hien, hoc thieu, hoc thiet
doanh cua » doanh luan
trung cap » truong cao, trung tam
cong tan » cong tac, cong san, cong ty
toan ban » van 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 thanh - hanh ((doanh cua) or (trung cap)) hang ((cong tan) OR (cong thanh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien thanh - hanh ((doanh cua) OR (trung cap)) hang ((cong tan) OR (cong thanh)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien thanh - hanh ((doanh cua) or (trung cap)) hang ((cong tan) OR (cong thanh)) toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thien thanh - hanh ((doanh cua) or (trung cap)) hang ((cong tan) OR (cong thanh)) toan ban*.