Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, tu cach
via cua » gia cua, gian cua, giau cua
via cuu » vinh cuu
va tinh » may tinh
ve chao » ve chat, ve cham, ve cho
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
te sach » toc sach
xu va » xu van, tu va, su va

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) or (te sach)) ky nang xa hoi. hieu ve chao xu va tinh ((via cuu) OR (via cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang xa hoi. hieu ve chao xu va tinh ((via cuu) OR (via cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky nang xa hoi. hieu ve chao xu va tinh ((via cuu) OR (via cua)) tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang xa hoi. hieu ve chao xu va tinh ((via cuu) OR (via cua)) tre*.