Perhaps you should try some spelling variations:
ky lang » ky nang, ky tang, tay lang
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
truc va » thuc va, thuc vat, trung va
va danh » va dinh, va dan, va hanh
danh li » dan li, danh di, dinh li
ca tren » cau tren, cu tren, la tren
ve cau » ke cau, va cau, ve cac
li ca » ly ca

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 ((ky lang) OR (ky dang)) xa hoi. hieu ve cau truc va danh li ca tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sinh ((ky lang) OR (ky dang)) xa hoi. hieu ve cau truc va danh li ca tren".
• Adding a wildcard symbol may retrieve word variants: hoc sinh ((ky lang) OR (ky dang)) xa hoi. hieu ve cau truc va danh li ca tren*.