Perhaps you should try some spelling variations:
dang thai » dang thi, dang hai, dang khai
thien van » thi van
thu sach » thuat sach, thuoc sach, thu hoach
bac nuoc » bach tuoc, sach nuoc, hoc nuoc
thai cua » than cua, tai cuc, tri cua
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
va dang » van dang, va nang, va lang
tu sach » su sach, te sach, tu cach
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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) or (tu sach)) ky nang x hoi. thien van ((bac nuoc) OR (cac nuoc)) va dang thai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ky nang x hoi. thien van ((bac nuoc) OR (cac nuoc)) va dang thai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (tu sach)) ky nang x hoi. thien van ((bac nuoc) OR (cac nuoc)) va dang thai cua te".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (tu sach)) ky nang x hoi. thien van ((bac nuoc) OR (cac nuoc)) va dang thai cua te*.