Perhaps you should try some spelling variations:
danh vit » danh viet, dinh viet, dang viet
ly lang » ly hang, ly vang, ly lanh
le lang » le tang, le dang, le xang
truc va » thuc va, thuc vat, trung va
va danh » va dinh, va dan, va hanh
cu tren » tu tren, dua tren
ve cau » ke cau, ve cac, le cau
va cau » van cau, va cac, va dau
vit cu » vit ca
sinh » dinh, minh, kinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sinh ((ly lang) or (le lang)) xa hoi. hieu ((ve cau) OR (va cau)) truc va danh vit cu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sinh ((ly lang) OR (le lang)) xa hoi. hieu ((ve cau) OR (va cau)) truc va danh vit cu tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sinh ((ly lang) or (le lang)) xa hoi. hieu ((ve cau) OR (va cau)) truc va danh vit cu tren".
• Adding a wildcard symbol may retrieve word variants: hoc sinh ((ly lang) or (le lang)) xa hoi. hieu ((ve cau) OR (va cau)) truc va danh vit cu tren*.