Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
thanh vi » thanh va, thanh ve, nhanh vi
vu sach » vu bach, su sach, vu khach
cam loc » cam lo
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va
nang xa » nang x, lang xa, nang ma
loc va » hoc va, luc va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky nang xa hoi. ((hieu ve) OR (hieu van)) cam loc va ((thanh vi) or (hanh vi)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang xa hoi. ((hieu ve) OR (hieu van)) cam loc va ((thanh vi) OR (hanh vi)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang xa hoi. ((hieu ve) OR (hieu van)) cam loc va ((thanh vi) or (hanh vi)) cua te".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang xa hoi. ((hieu ve) OR (hieu van)) cam loc va ((thanh vi) or (hanh vi)) cua te*.