Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
hanh trung » thanh trung, hanh trang, manh trung
toc thien » toc thieu, ton thien, duoc thien
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
cong tac » cong ty
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: toc thien danh - hanh trung cua thong ((cong tac) OR (huong dan)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thien danh - hanh trung cua thong ((cong tac) OR (huong dan)) toan cao*".