Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
thanh tap » thanh tai, thanh tay, thanh tam
thanh lap » thanh san, thanh hai, thanh van
cua dung » cua dang, cua dong, qua dung
dung ung » dung cong
phan lap » phan dau
ung van » dung van, vung van, cung van

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 tranh cua dung ung van ((thanh tap) or (((thanh lap) OR (phan lap))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh cua dung ung van ((thanh tap) OR (((thanh lap) OR (phan lap)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - canh tranh cua dung ung van ((thanh tap) or (((thanh lap) OR (phan lap))))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh cua dung ung van ((thanh tap) or (((thanh lap) OR (phan lap))))*.