Perhaps you should try some spelling variations:
tru nang » tra nang, tri nang, truc nano
van quan » van ban
quan li » quan ly, quan tri
xuc van » duc van, luc van, vuc van
tu sach » thu sach, su sach, te sach
tu nong » tu dong, tu tong, tu tuong
tu cong » thu cong, te cong, tai cong
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
li cua » lai cua, le cua, ly cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((((tu nong) or (tu cong))) or (tru nang)) xa hoi. lieu va cam xuc van quan li cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((((tu nong) OR (tu cong))) OR (tru nang)) xa hoi. lieu va cam xuc van quan li cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ((((tu nong) or (tu cong))) or (tru nang)) xa hoi. lieu va cam xuc van quan li cua tre*.