Perhaps you should try some spelling variations:
ly lang » ly hang, ly vang, ly lanh
le lang » le tang, le dang, le xang
hieu ve » hieu va, hieu van
va danh » va dan, va hanh, dia danh
va dinh » van dinh, va kinh, va tinh
ca tren » cau tren, cu tren, la tren
ve cau » ke cau, va cau, ve cac
vi ca » vit ca, li ca, va ca
sinh » minh, kinh, tinh

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 truc ((va danh) OR (va dinh)) vi ca 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 truc ((va danh) OR (va dinh)) vi ca 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 truc ((va danh) OR (va dinh)) vi ca tren".
• Adding a wildcard symbol may retrieve word variants: hoc sinh ((ly lang) or (le lang)) xa hoi. hieu ve cau truc ((va danh) OR (va dinh)) vi ca tren*.