Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
tang luan » dung luan
hang tai » hang va, dung tai
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
hang ca » hang va, nang cao, hang dau

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 ((tang luan) or (((hang ca) OR (hang tai)))) nhung cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien danh - hanh ((tang luan) OR (((hang ca) OR (hang tai)))) nhung cong tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien danh - hanh ((tang luan) or (((hang ca) OR (hang tai)))) nhung cong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thien danh - hanh ((tang luan) or (((hang ca) OR (hang tai)))) nhung cong tan toan cao*.