Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, hanh trinh, canh tinh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trinh va » trinh van, trinh vat, trinh ve
pho cau » pho cap, pha cau, pho cam
ung » cung
dung » dcung
dcung » dccung

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 - canh trinh va ((ung (dung or dcung)) or (thong cong)) thanh pho cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh trinh va ((ung (dung OR dcung)) OR (thong cong)) thanh pho cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh trinh va ((ung (dung or dcung)) or (thong cong)) thanh pho cau*.