Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thuat dung » thuat hung, thuat ung, thuat xung
trong dang » truong dang, trong dan, trong dong
hien xanh » hien hanh, hien nhanh, chieu xanh
luat dung » luat chung, xuat duong, luat huong
suat dung » xuat duong, suat huong, su dung
dang toan » dang tran, dan toan, dung toan
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 hien xanh - hanh trinh ((((luat dung) OR (thuat dung))) or (suat dung)) trong dang toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh trinh ((((luat dung) OR (thuat dung))) OR (suat dung)) trong dang toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh trinh ((((luat dung) OR (thuat dung))) or (suat dung)) trong dang toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh trinh ((((luat dung) OR (thuat dung))) or (suat dung)) trong dang toan cao*.