Perhaps you should try some spelling variations:
thanh chau » thanh cha, thanh cham, thanh chu
nhanh bac » nhanh ha, nhanh va
dung cong » dung trong
hoc diep » hoc dieu, hong diep, ngoc diep
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
bac cua » ban cua, tac cua, bai cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc diep tinh - nhanh bac cua dung cong dan ((thanh chau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc diep tinh - nhanh bac cua dung cong dan ((thanh chau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: hoc diep tinh - nhanh bac cua dung cong dan ((thanh chau) or (phan tu))*.