Perhaps you should try some spelling variations:
thanh lap » phan lap, thanh hai, thanh van
toc sach » hoc sach, doc sach, thuoc sach
cua viet » ca viet, hoa viet, cua dieu
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
thi van » thi lan, thi hanh, thi nang
van bac » van ban, van bao, van hac
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky nang xa hoi. thi van bac xuc va ((thanh lap) OR (thanh san)) ((cua viet) or (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang xa hoi. thi van bac xuc va ((thanh lap) OR (thanh san)) ((cua viet) OR (cua vat)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang xa hoi. thi van bac xuc va ((thanh lap) OR (thanh san)) ((cua viet) or (cua vat))".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang xa hoi. thi van bac xuc va ((thanh lap) OR (thanh san)) ((cua viet) or (cua vat))*.