Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » hoc hien
hanh hang » thanh hang, hang hang, hanh han
cua nhung » va nhung
thanh cao » thanh ca, thanh thao, thanh cham
thanh cac » hanh cac, thanh bac, thanh ca
hang cua » mang cua, hang ca, huong cua
cong van » cong vang, cong san, song 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) or (toc thieu)) sach - hanh hang cua nhung cong van ((thanh cao) OR (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) sach - hanh hang cua nhung cong van ((thanh cao) OR (thanh cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (toc thieu)) sach - hanh hang cua nhung cong van ((thanh cao) OR (thanh cac))".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) sach - hanh hang cua nhung cong van ((thanh cao) OR (thanh cac))*.