Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
lang thanh » dang thanh, tang thanh, lang thang
hoc thieu » toc thieu
trinh van » trinh quan, trinh toan, dinh van
trinh han » trinh quan
cong lang » cong vang, cong luong, cong quang
thanh cao » thanh ca, thanh cac, thanh thao

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc hien)) xanh - canh ((trinh van) OR (trinh han)) thong cong lang thanh cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) OR (hoc hien)) xanh - canh ((trinh van) or (trinh han)) thong cong lang thanh cao~".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) OR (hoc hien)) xanh - canh ((trinh van) or (trinh han)) thong cong lang thanh cao*.