Perhaps you should try some spelling variations:
thue nang » thien nang, thuat nang, chuc nang
thi nang » thi cong, ki nang, thi hanh
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
lai cua » hai cua, lai chau, thai cua
ve cam » ve cham, ve cac, va cam

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

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