Perhaps you should try some spelling variations:
thuoc sach » hoc sach, thuat sach, thuoc sinh
nuoc sach » nguoi sach, hoc sach, cuoc cach
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
luoc van » luoc can, luoc va, luc van
cam luoc » cam xuc, tom luoc, cam lo
van cam » van nam, van lam, van cau
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
de cua » le cua, dieu cua
te cua » tue cua, le cua

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

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