Perhaps you should try some spelling variations:
sinh ky » sinh ly, sinh y, kinh ky
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ke » hieu kem, chieu ke, hieu ky
truc va » thuc va, thuc vat, trung va
danh vi » dinh vi, danh di, danh va
ca tren » cau tren, cu tren, la tren
ke cau » ket cau

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