Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van tuan » van quan, van ban, anh tuan
tuan soc » quan so, xuan son, dan soc
dua tren » dung tren
ky lang » ky dang, ky tang, tay lang
van hoi » van hoa, van hoc, van hoe
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
soc va » hoc va, loc va, doc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te bao ((ky lang) OR (ky nang)) van hoi. hieu van tuan soc va hanh vi ((cuu tre) or (dua tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te bao ((ky lang) OR (ky nang)) van hoi. hieu van tuan soc va hanh vi ((cuu tre) OR (dua tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te bao ((ky lang) OR (ky nang)) van hoi. hieu van tuan soc va hanh vi ((cuu tre) or (dua tren))".
• Adding a wildcard symbol may retrieve word variants: te bao ((ky lang) OR (ky nang)) van hoi. hieu van tuan soc va hanh vi ((cuu tre) or (dua tren))*.