Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
hoc thien » hoc hien, hoc thieu, hoc thiet
trung cua » truong cua, trung tuan, trung cap
dung cong » dung trong
tan thanh » tran thanh, tang thanh, toan thanh
thanh tai » thanh hai, thanh toan, doanh tai
mang cua » manh cua, dung cua, ban cua
cong tan » cong tac, cong san, cong thanh

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 danh - hanh ((trung cua) or (mang cua)) dung cong tan thanh tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien danh - hanh ((trung cua) OR (mang cua)) dung cong tan thanh tai.
• Adding a wildcard symbol may retrieve word variants: hoc thien danh - hanh ((trung cua) or (mang cua)) dung cong tan thanh tai*.