Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
thieu xanh » chieu xanh, hieu manh, thien anh
thanh toan » thanh hoa, thanh san, tinh toan
hoc thieu » toc thieu, hoc hien
tran vann » tan van, tran vinh, tran anh
tran manh » tran minh, tran thanh, tran dinh
hang cong » dang cong, hang nong, bang cong
tran van » luan van
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 thieu xanh - hanh ((((tran vann) OR (tran manh))) or (tran van)) hang cong thanh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((((tran vann) OR (tran manh))) OR (tran van)) hang cong thanh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh ((((tran vann) OR (tran manh))) or (tran van)) hang cong thanh toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((((tran vann) OR (tran manh))) or (tran van)) hang cong thanh toan cao*.