Perhaps you should try some spelling variations:
sach thue » sach thu, sach thieu, sach tham
thue nang » thien nang, thuat nang, thi nang
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, va hanh
vai cua » hai cua, lai cua, bai cua
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao

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 thue nang xa hoi. hieu ((ve cam) OR (va cam)) duc va danh ((vai cua) or (dai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach thue nang xa hoi. hieu ((ve cam) OR (va cam)) duc va danh ((vai cua) OR (dai cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach thue nang xa hoi. hieu ((ve cam) OR (va cam)) duc va danh ((vai cua) or (dai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: vu sach thue nang xa hoi. hieu ((ve cam) OR (va cam)) duc va danh ((vai cua) or (dai cua)) triet*.