Perhaps you should try some spelling variations:
thi hanh » thi thanh
vinh cau » sinh cau, vinh cuu, minh cau
cham duc » pham duc, cham soc, pham duy
cau tren » cu tren, dau tren, ca tren
thi nang » thi cong, ki nang
sach ky » sac ky, sach y, sach ty
va danh » va dan, va hanh, dia danh
va dinh » van dinh, va kinh, va tinh
nang xa » nang x, lang xa, nang ma
te sach » toc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang xa hoi. ((thi nang) or (thi hanh)) cham duc ((va danh) OR (va dinh)) vinh cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. ((thi nang) OR (thi hanh)) cham duc ((va danh) OR (va dinh)) vinh cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. ((thi nang) or (thi hanh)) cham duc ((va danh) OR (va dinh)) vinh cau tren".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. ((thi nang) or (thi hanh)) cham duc ((va danh) OR (va dinh)) vinh cau tren*.