Perhaps you should try some spelling variations:
lang mai » lang dai, lang hai, lang man
hang tai » hang va, dung tai
sang tai » sang tao, tang tai, sang than
chat xuc » chat huu, cam xuc, chao xu
thu sac » thu sach, thu san, thu xac
cac xuc » cam xuc, cac nuoc, cac cuoc
tai duc » tai cuc, mai duc, tai du
va hang » van hang, va nang, va lang
duc tre » duoc tren, duc tien
hieu ve » hieu va, hieu van
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sac ky ((lang mai) or (sang tai)) hoi. hieu ve ((cac xuc) OR (chat xuc)) va hang tai duc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky ((lang mai) OR (sang tai)) hoi. hieu ve ((cac xuc) OR (chat xuc)) va hang tai duc tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sac ky ((lang mai) or (sang tai)) hoi. hieu ve ((cac xuc) OR (chat xuc)) va hang tai duc tre*".