Perhaps you should try some spelling variations:
thieu vien » thieu nien, thieu bien, thu vien
vien chat » van chat, vien cac, vien cao
chat duc » chat xuc, chat doc, chet duoc
hang tai » hang va, dung tai
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va hang » van hang, va nang, va lang
su viet » so viet
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) or (sai ky)) nang xa hoi. thieu vien chat duc va hang tai ((su viet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sai ky)) nang xa hoi. thieu vien chat duc va hang tai ((su viet) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sai ky)) nang xa hoi. thieu vien chat duc va hang tai ((su viet) or (va thiet))*.