Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
hieu van » hieu va, thien van, lieu va
van tuan » van quan, van ban, anh tuan
tuan soc » quan so, xuan son, dan soc
van hanh » van thanh, ban hanh, van anh
cau tren » cu tren, dau tren, ca tren
dua tren » dung tren
ky lang » ky nang, ky dang, ky tang
van hoe » van hoa, van hoc, van hieu
soc van » hoc van, oc van, sac van
bao ky » cao ky, ban ky, bac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te bao ky lang van hoe. hieu van tuan soc van hanh vi ((cau tren) or (dua tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te bao ky lang van hoe. hieu van tuan soc van hanh vi ((cau tren) OR (dua tren)).
• Adding a wildcard symbol may retrieve word variants: te bao ky lang van hoe. hieu van tuan soc van hanh vi ((cau tren) or (dua tren))*.