Perhaps you should try some spelling variations:
va danh » va dinh, va dan, va hanh
cham tu » pham tu, cam tu, chai tu
sach ky » sach y, sach ty, sach kem
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
vit ca » viet ca, viet cau
vi ca » li ca, va ca, vi ha

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) or (sac ky)) nang xa hoi. hieu ve cham tu va danh ((vi ca) OR (vit ca)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sac ky)) nang xa hoi. hieu ve cham tu va danh ((vi ca) OR (vit ca)) tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) or (sac ky)) nang xa hoi. hieu ve cham tu va danh ((vi ca) OR (vit ca)) tren".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) or (sac ky)) nang xa hoi. hieu ve cham tu va danh ((vi ca) OR (vit ca)) tren*.