Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
chat tuc » chat xuc, luat tuc, chat huu
van hanh » van thanh, ban hanh, van anh
dua tren » dung tren
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
nang co » nang cao, nang doc, nang noi
tuc van » thuc van, truc van, tuc va
sach ky » sac ky, sach y, sach ty
hanh ve » hanh vi, hanh va, hanh kem
ca tren » cau tren, la tren, co tren
cu tren » tu tren

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang co hoc. hieu ve chat tuc van hanh ve ((ca tren) or (((cu tren) OR (dua tren))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang co hoc. hieu ve chat tuc van hanh ve ((ca tren) OR (((cu tren) OR (dua tren))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang co hoc. hieu ve chat tuc van hanh ve ((ca tren) or (((cu tren) OR (dua tren))))*".