Perhaps you should try some spelling variations:
thanh trong » thanh trung, tranh trong, hanh trong
thong cong » trong cong, tong cong, thong thong
kieu tinh » lieu tinh, trieu tinh, diep tinh
chau tinh » cuu tinh, ha tinh, cua tinh
trong ca » trong cac, trong nha
ca thong » ca thuong, va thong, ca trong
cong dan » cong san, cong tan, huong dan
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((kieu tinh) or (chau tinh)) - thanh trong ca thong cong dan ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((kieu tinh) OR (chau tinh)) - thanh trong ca thong cong dan ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: hoc ((kieu tinh) or (chau tinh)) - thanh trong ca thong cong dan ((than cau) or (toan cau))*.