Perhaps you should try some spelling variations:
tuan vinh » tran vinh, tuan minh, xuan vinh
thien van » thi van
tan vinh » tran vinh, van vinh, tan binh
tru nang » tra nang, tri nang, truc nano
tu sach » thu sach, su sach, te sach
xuc van » duc van, luc van, vuc van
van dau » van dao, phan dau
dau xuc » dau xac, dau xua, dau nuoc
tu nang » tu nong, tu nano, tu lang
cuu tre » cua tre, cau tren, cau treo

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 nang) or (tru nang)) xa hoi. thien van dau xuc van ((tuan vinh) OR (tan vinh)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((tu nang) OR (tru nang)) xa hoi. thien van dau xuc van ((tuan vinh) OR (tan vinh)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((tu nang) or (tru nang)) xa hoi. thien van dau xuc van ((tuan vinh) OR (tan vinh)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((tu nang) or (tru nang)) xa hoi. thien van dau xuc van ((tuan vinh) OR (tan vinh)) cuu tre*.