Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trung hai » trung ha, trung dai, trong hai
tung bay » vung bay, tuong ban, tung dan
cong van » cong vang, cong san, song van
van van » tan van, san van, van vat

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 - thanh ((tung bay) or (trung hai)) thong cong van van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((tung bay) OR (trung hai)) thong cong van van ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((tung bay) or (trung hai)) thong cong van van ban*.